Yea pretty impressive the Kevlar shock cord can do all that and not shred itself too. Chute opened at like 300 fps!

So here I had redundant altimeters with separate batteries and separate charges. I make the backup charge 20% bigger than the primary. This way if the primary gets hung up, it has more pressure to separate things. I think my lesson learned here was take it off the pad even if it's a backup altimeter that loses continuity. It's not really a back up if it's not hooked up. Would a back up drogue charge have prevented the zipper? Maybe, maybe not but it wouldn't have been a bad thing.

Ha very gingerly, like shaking hands with a porcupine.

Commercially available APCP from Aerotech in the USA.

Most likely ematch connection at the screw terminal on the bulkhead. Rewired it home and it checked out fine.

@@pathtouch1 interesting. I have had ematches, specifically the orange Chinese ones, indicate continuity and then not fire. Too bad about the zipper, hopefully it's an easy fix!

Yea tested twice at home and had decent separation. I think there’s a KZfaq short on my channel of the ground testing. once you add in a little horizontal velocity I guess things were different. Also there’s a bit of gap around my 54mm to 75mm home made adapter and the vent hole is large so you’re spot on. Anyways I actually just flew this again today and had much better luck this time! Upped the drogue charge to 6 grams. Video coming later this week.