RE: back tension release and a solid back wall
i went to school with larry wise to learn bt. he suggested a spongy wall, like a hoyt wheelie, was his favorite for using it. i shoot a bowtech with a solid stop and found it difficult to master without causing some shoulder issues. some guys on here like the solid wall for it. i didn't, and don't, and the fellows i've talked to who shoot back tension where i live don't like it either.