I got great responses from my weight of cue thread, so now what about the diameter of the shaft. I shoot with a Cognoscenti and tried an untouched shaft which is 13.2mm. I have to say it had great accuracy and I never miss cued but could not get alot of action from it. I shoot with an 11mm and can get alot of action out of it. Is this again a personal preference or is there a difference between a thick shaft compared to a skinny one. Thanks.