Brian, I used to have the same problem--until someone pointed out to me what I was doing (he' d had the same problem too, and someone pointed it out to him). Try evening out the pressure on your fingers--I' ll bet you are pulling more with your ring finger, possibly pulling up on the string/pushing down on the arrow.

Dunno if I am going to be able to order one or not--called again today, got an answering machine. Maybe they are on vacation?

Chad