I have just bought a hoyt rampage xt, second hand. I am quite new to archery and there is no archery stores anywhere near to me. The seller says the draw length is 30in, but i am 28.5in, can anybody help me and tell me how to change it please? There is a small pin on the bottom cam in a hole marked 'e' is it just a case of moving this pin to position 'b' as seller says it adjusts in 1/2in increments and is adjustable from 28 - 30in. I bought it on ebay and i cant get hold of the guy now to ask him how i do it. All help GREATLY apreciated.