been having some trouble with arrow flight n tried cock feather in and it seamed to make arrows fly  was just wondering why.thanks to anyone who can educate me

If your arrows are borderline spine, the feather striking the riser will cause it to weeble/wobble 8^).  Turning the cock feather in helps it clear.
You just fixed the symptom, not the problem.  Check your spine again, and see if you should be in the ballpark with what you are shooting.

Thanks George! That might be the problem. been playing around w/ arrow length shortening a little at a time. prob over spined for my setup gonna try heavier head i think