My regular playing cue has a 12.65mm tip. I like it alot because I don't have to cue far off from the center for near extreme english shots (which you barely ever need) My game with a 12.65 makes english shots easier because you get the spin without having to cue as far out. HOWEVER, on my bad days I do play with another cue that's a bit more forward weighted and a 13mm tip. Also on some long straight shots, I sometimes switch back to my 13mm if I dont' feel confident about my stroke that day.