145# bow shot with a thumb ring

Next Archery FAQ. I tested a few quite different thumb ring designs. I shot a 26# bow, because I think with a low draw weight the difference (if there is) will be .
I tried shooting a thumbring with a longbow. Turned out its not my thing. Maybe I didnt try hard enough. What do you think?
Thumbring Archery Shooting.
thumbring shooting during World Traditional Archery Festival 2007 with Saluki hornbow.