I have always used an aluminum 42" ab biller with 2 5/8 bands. I am like robin hood with that thing. Now I purchased a Mahogany 60" Biller and am missing the most simple shots. It has two medium sized 5/8 bands on it. Only accuracy I got from it was when I put my other hand on the bottom of the gun directly in front of the trigger. My fingers got caught in the string a couple times. I gotta be doing something wrong