In 1994 I went to the IBO world and see Hall using one and ask him about it. He was the only one using one at the time he showed me how he tied it and he talk about how he thinks it makes the bow shoot a lot better he also came out with the overkill release to use with it. When I got home I told a freind who owend a proshop and he thought I was crazy, so I started to play with it. That year I went are IBO midwest indoor and when I got there shooters where asking me about it they never seen one used before and how to tie it. I won the shoot and the next time I was over that way ever one and there dogs had one on there bow and than it realy took off like crazy.