Does anybody have any hacks on how to straighten up a twisted catch pole cable. The “d-ray” and the knock off one I have both have issues with not being a nice open loop after literally one catch. I’ve tried tightening it over a cylindrical object overnight to regain the memory but no luck. I worry that heating the cable might just weaken it.

The best way for me was to learn how to use it correctly. After maybe the third replacement cable, I started paying more attention to the placement of the pole before I put the squeeze on.
The end of the pole should be at the back of the head/neck. Replacements are easy enough to change out but rarely needed when used properly.

I prefer the thicker cable on my d-ray. first off make sure you aren't over tightning when in use as I had a habit of that and it tends to kink worse. after a few uses of my d-ray if the cable is all jacked up just open up the quick link on the end of pole and straighten out the cable by hand.

x2

You can bend the kinks back out, . mostly.

Stun before putting it on the animal.