I am going to order my first pool cue and wanted some opinions on selecting a shaft diameter. I have played with a friends Viking cue which had a 12mm shaft diameter and found that I played much better with it. Also I noticed that when I usually select a house cue I tend to try and find one with a smaller shaft diameter, some i have used which I know were even smaller than 12mm but I dont really remember if I played better or worse, with those. When I was using my friends cue I noticed that my shots were more consistant. The reason I am asking this is because I heard that having a smaller diameter shaft can hinder your game if you are doing bad that day, basically if you are off it makes you much more off and if you are doing good it only slightly increases your game. Does this apply to diameters less than 12mm? or 13mm? What do most people on the forum use? I dont want to order a cue and then have it hinder my game because I made a wrong decission in selecting the shaft diameter. But I do think that I played better with the 12mm, I got better english and my shots were more accurate.