How do you line up subsequent outers so that the inner snaps in in the correct orientation on an oval thumb hole?

Why do my thumbs get smaller at the bottom.. it also makes my inners tighter

I am sold on the system. I want to install this in all my bowling balls. However, I also want to try something I haven't done before, oval thumb slugs. How is that executed??

At no point while drilling was the ball clamped down on the press, it was just sitting there, completely insecure... Then proceeds to use Acetone (a banned substance) on the ball, so now the ball is illegal.

My JoPo thumb is sticking...on my thumb, how do I clean it?

Very well done video. Professional ball driller who cares about quality of his work and takes pride.

Couldn't recommend highly enough,as a bowler who struggled with the frankly abrasive feel of the turbo slugs which seemed to sand my thumb on the way out ensuring a glacial exit,switched to turbo outers and vice inners however finding a new problem,breakage of the outer These are amazing,nice quick exits all the time and i haven't had one fail on me yet,strong and slick A must have for any bowler struggling to get their thumb out

Is it ok to use a small mount of grease or lubricant (plastic safe of course) to make locking / unlocking easier without a tool?

if my ball already has jopo installed and i wanted to change my span can i plug it and redrill it?

I just gotta say that if VISE put a 5/8" hole in their slug-IT's, the Ferrari JIG would be totally obsolete. I ordered the JOPO starter system for my shop this weekend. Looking forward to trying it out.

Only issue that i have is my thumb inserts dont always want to come out while bowling. Makes it hard to switch balls when my thumb wont twist out

so the pitches are on the sleeve and not in the thumb itself? better to go 0/0 on the sleeve and add pitches in the thumb?

I am absolutely sold on the JoPo System💯💯💯🤙🏿🤙🏿

Thank you for putting the product first ---

Very eager to try your system. You mentioned in the other comment that your stopper bit is longer than the competitors. If I were to bring an inner and outer JoPo to a driller that's using a Turbo or Vise 1.5'' bit, would the end result be poor? I assume more of the inner and outer would need to be cut down with the plug cutter after? I'm afraid that may be the only way I'm able to give it a shot. Hope that's doable! Also, would love to see you guys roll out some new colors on the inserts and slugs.

Getting a Jopo thumb installed in my first ball right now, can’t wait to try it out!!

How deep is the JoPo drill bit into the ball when against the stopper? Just ordered the starter kit, looking at drill presses and trying to determine how much travel is required. Thanks.

I just purchased the starter kit today. I'm just a garage driller/pro shop type guy but I am very excited to start drilling some balls with the JoPo Twist!

Made the switch to the JoPo twist in one of my older bowling balls recently. I only had a couple of issues in my 2 1/2 years of using the VISE IT system. No bad feelings against the VISE IT, but I feel the JoPo Twist is a better product. I will eventually over time, have the JoPo TWIST installed in the rest of my bowling balls.

How much of a pain is the process of transitioning my currently drilled balls to jopo thumbs?

After a four-year hiatus from bowling due to joining the military, I switched from the Turbo Switch Grip to the Vise IT. Then I learned about JoPo Grips. Experiencing looseness with the IT and seeing a piece of its locking mechanism break inside my spare ball is what influenced my decision to convert all of my equipment over to JoPo Grips after learning more about the company from these videos and on social media. I hope to see a handful of PBA players join your staff soon! Also, when I used the Turbo Switch Grip, I momentarily lost one of my slugs due to one of its pegs breaking under pressure. With all due respect to both of these major finger/thumb insert manufacturers, I hope I don’t experience this issue at all.

Good idea....looks like it secures well.....the hole already in the slug is not a good idea though. Just put through lathe and use centering bit to mark it for pso. Terrible idea in the idea you have a customer that wants to change pitches with a small thumb, you can get away with 1/4 in the turbo system without having issues or plugging, this would not allow that as you'd have an oval hole front to back towards the bottom if customer had small thumb. But does look like this idea secures the slug pretty well

Are you allowed to bevel the inner slug?

Best in the business!