I am getting one of these and was wondering do you have to get different nock recievers for right helical and straight?

You need to get different clamps for left helical, right helical, and straight, You can do offset with the straight clamp.

What he said -- bit Zenith(i beleive thats the company) put out an upgraded nock reviever for the bitz that is supposed to be more accurate and easier to fletch short vanes with more helical and offset.

Unfortately, your supposed to use different nock recievers for each. I don't myself. I think I have a RW nock reciever and when I fletch, I leave my nocks lose, or most carbons use nocks you can turn. I fletch up like normal and turn my nocks the way I want.

Thanks guys. I shoot carbons so my nocks turn and I won't worry about it right now.

No doubt your set. The problem comes from mostly aluminum shooters who glue in the nocks as you probably guessed.