I'm using a Carter Solution 3 with a thumb trigger. I've been firing it by applying back tension until it releases. 95% of the time it releases within my desired time frame and sometimes it doesn't. I suspect when fatigued, I'm collapsing my bow arm.
I'm now experimenting with "relaxing" the hand, specifically the index finger, which rotates the release and drives the trigger into my thumb to fire the release. It's been working well. It's just not automatic yet. How do you shoot a BT release with a thumb trigger? What's worked and not worked?
Thanks for any feedback.