I just bought a bowtech assassin, which is my first bow. I've had it for about a week and I am really trying to concentrate on form and the way I touch the trigger off.

My question is that I notice that consistently the tail end of my arrow are cocked to the left when they're in the target. Now my bow has not been paper tuned but everything was adjusted correctly at the shop I bought it at.

I was wondering does it just need to be paper tuned or does it have something to do with the rest. I am using the rest that came with the assassin.
Thanks for the help