😜👍

Sorry for the late response. I have not tested for this, don't see any problems though.

Hi J Kiggen, the stainless steel is 316 stainless, non-magnetic.

@@RobAllenSpearfishing yes ofcourse. 17-4 stainless is magnetic but I'm not sure how the corrosion properties compare.

@@jkiggen2989 I have not tried to get 17-4 stainless in a sheet form to make the drop barbs. I think the spear strength in the barb area would be compromised if we try fitting a magnet. Any magnet would have to be fully encapsulated as well.

@@RobAllenSpearfishing very true. Probably not worth the extra cost anyway.. 👍🏻

If the barb itself was magnetic, that would be a different story. Wouldn't know if 17-4 stainless can be magnetized...

Hi Bill, with a normal drop tip a slide (ferrule) is what most use. With the drop barb, the line passes through the spear. The reason for this is to eliminate the need for a slide. The issue I have with slides is that they create drag. The amount of drag is significant. Also, our spears are not stainless so the slide will scratch up the plating and, more likely to jam at some time.

Will do.

Hi Manuel, a rotating spear is no problem and a common situation. The barb will still deploy no matter what. As soon as the fish moves it will fall off.

cool, thanks

All the testing we have done show mono to be more likely to snag. This roller is best with Dyneema and, even better with the hole ahead of the notches like this.

Busy with a wood/carbon composite.

@@RobAllenSpearfishing that sounds interesting! Any informations about that gun?

@@raphaelbolliger9094 divefactory.co.za/product/rob-allen-gt-carbon-timberline-rollergun/

@@RobAllenSpearfishing thanks for your response! I will check out ;)

Hi Broseidon, I hear you but..... I still battle to get my head around the whole concept. I still don't see the advantage. To me, if the average person sets up a non reverse gun, such that he or she can only just load it, then he or she would not be able to load a reverse mech gun rubbers onto the spear notch that is now that much further back. The only way to do this now would be to lengthen the rubbers. We are not the only manufacturer who think like this. In time we might make a reverse mech, but only because of customer demand, not because I think it's a good idea. One day I will make one and pool test the hell out of it and make a video to prove this 😂👍

@@RobAllenSpearfishing the advantage, to me at least, is really clear: I've got an RA70 that I used for poor viz and an RA90 for good viz. I've replaced both guns with a single 82cm Pathos gun. The Pathos is shorter (handle to spear tip) than the RA70 but has more band stretch than the RA90. It's a complete no brainer for me as I've now got a super compact gun that I can use in a huge variety of conditions. I appreciate that for big, blue water guns it might not be so important but for people using smaller guns, it really makes a considerable difference.

@@BR0SE1DON Hi brother, only one parameter is mentioned (further band stretch with inv trigger mech). Think also about type and dimensions of spear used, maybe band length itself (if you cut them a bit shorter you might get the same energy as with a inv trigger mech) and band type. Hope this helps. A standard mech is also more comfortable to load especially when stretching bands to max (which does not mean it's recommendable as it might affect accuracy).

@@DeepBlueSpirit2 Hey! I have the Carbon Roller 90, and I am quite fond of it, but have to agree with @BROSEIDON that it deserves a better trigger mechanism. Saying to "just use shorter bands" seems like a simple take, as if the length of the barrel of a gun doesn't matter. Also I've had a tough time getting used to aiming with it since you're not able to aim down the shaft because of the higher trigger mechanism. Considering either getting a meandros nitro r2 trigger mech that solves these issues or look for another speargun in the future.

These are both very different guns but, you have been told correct, very similar in terms of performance. The max range of the non-roller is basically 5 x the barrel length, 5,5m (single wrap). The roller is 7 x the barrel length (double wrap) 6,3m. The range is slightly better with the roller but, a roller takes more time to rig and load. There are advantages and disadvantages for both. The roller is easier to maneuver as it is shorter but, less buoyant so it will sink without the spear in. Only the longer rollers are buoyant enough with the spear out. A roller also has a much smaller operating window in terms of set up to work well. It needs to be “tuned” more often, whereas with a non-roller, not as important.

@@RobAllenSpearfishing more than informative, thank you so much legend

Hi Tim, obviously 14mm will be less powerful than 16mm. This is why we match the 14mm rubber with a 7mm spear and the 16mm with the 7,5mm, heavier spear. For your info, the max power output from a 14mm rubber is around 45 kg and 60 kg from the 16mm.

awesome, thanks for the info 👌

Hi SpearFisher, we do not make stainless spears because there is no spring steel stainless out there as strong as the high tensile spring steel wire we already use, that we know of. Regarding a fin 1/2 way up the spear, this can induce stress which can cause the spear to bend or break easily at that point.

@@RobAllenSpearfishing but there's heterogeneity of material. Tuna breaks in place of shaft's pin. KZfaq cut message with link, I can't put link here. Stainless bent. Yes. Everything can be broken that why we use slip-tip. Btw i think your shaft are good.

@@SpearFisherPitZ The dropbarb works like a slip tip. kzfaq.info/get/bejne/q7KVoM150Ji7nYk.html

kzfaq.info/get/bejne/j5Z-iKiHpradeKs.html

Way too many variables, might try one day.

@@RobAllenSpearfishing True :)

Hi SpearFisher, Sorry, I think you miss understand the video. The dropbarb is normally held on by an O ring. Some find it difficult to use, so the 2 thin elastic was just there to apply enough tension until the gun is fired. The elastic breaks and the barb deploys. I f you watch the video we put up before about the dropbarb you will understand. Regarding the use of a magnet, first off, the barb is 316 stainless steel, totally non-magnetic. I'm not sure what you are refering to re soft Dyneema? Dyneema is the strongest fibre available. We have it made in a variety of thicknesses. We use double 1,8mm Dyneema on the bigger dropbarbs, this can handle 200kg of tension. This smaller barb has 2 x 1,5mm Dyneema. Both sides of the drop barb is set up such that it protects the Dyneema when shot through a fish. I have yet to hear of one cutting off in a fish. One customer shot and landed over 20 dogtooth using the same dropbarb with the same spear and Dyneema 1,8mm Dyneema line. The set up was still good to use after these fish.

@@RobAllenSpearfishing thank you for answer. I understood about o-ring and elastic line that keep barb. I meen this elastic line could cut by fish bones or by another reason so we need to take another shaft. About dyneema. I meant not weak or not enough kg. I meant may it's a little too flexible? I saw people use specially on roller speargun not flexible dyneema blue color. Sorry for por English.

@@RobAllenSpearfishing about magnetic. Probably you can press magnetic element in barb.

@@SpearFisherPitZ The elastic does not hold the barb to the spear when it is shot through the fish. The elastic breaks most times anyway. The Dyneema line is what holds the dropbarb to the spear, not the elastic. The elastic is only there to hold it in place until the trigger is pulled. The Dyneema toggle line is just the same as a cable or the Dyneema line that holds a sliptip onto a spear.

@@RobAllenSpearfishing thank you for explaining. I understand it. Barb is tied to shaft by dyneema. You use o-ring or elastic for keeping barb atached to shaft. So if o-ring or elastic breaks you need to take the next shaft. Right? I think it's not robust. Yes. With o-ring is simpler "captain. Please give me o-ring from plastic pack inside my bag or i forgot it? " )

It can be also seen on 4:02. After that the spear starts wobbling.

@@petapote That muzzle kick us seen but is much less than what would be on a double rubber gun. Most of the muzzle movement is after the spear has left the gun. Yes there is a little spear wobble, almost impossible to stop this.

We do have small quantities but very few guys ask for them.

@@RobAllenSpearfishing how can I get your shafts in the US? I’m in Louisiana and can’t find anyone with shafts for my 100cm roller

@@abitawarrior Hi, you will have to order from our distributor in the USA Triton X Inc 2500 Del Monte Street, Suite 110 West Sacramento CA 95691 USA P:+916-371-3441 Toll Free @ 1 877-WETSUIT E:sales@tritonx.com

Hi Mark, I have never spear fished at night. I don't think there would be any special requirements or a specific brand that would work better. I can only assume you will not need a very big gun as you will mostly be hunting close up.

@@RobAllenSpearfishing thank you sir Rob for the reply and thank you for the tip you have given me . Right now Im using a DIY small speargun wood. Im spearfishing here in the Philippines by the way .

It depends on the length and set up. The 900 carbon and longer will float without the spear. With the aluminum, the 1000 and longer will float. The reel will add weight. This added weight will vary depending on the reel size and line. This is why we have started developing our Timberline guns with wooden side pods to add buoyancy. We can get a 700 with a thick spear and a big reel to float. We actually add lead to help with balance to make it just negative with the shaft in.

@@RobAllenSpearfishing thanks for the reply! I just ordered a 900 carbon roller today. Words can’t describe how psyched I am to use it.

Hi Rami, we are so far behind on orders that we would not be able to send to Spain for a while. You can try our distributor in the UK, France, Italy etc.

They can be stiff, some more than others. We recently changed the safety shape and found a slight variance, most OK but some are a littler stiff. It is possible to lightly sand paper the safety where it meshes inside. Mail me on rob@roballen.co.za and I will help show.

We have 20mm in stock, never had 25mm.