I play with a 10 mm tip, have for years...
When I got the stick back in the 80's I sanded it myself, by hand, starting with 220 grit sandpaper.
I have tried to go to a larger diameter but they don't work for me.
it is not whippy at all, maybe I got lucky and it is just a good piece of wood.
I would say get an old shaft and try it out first, not your fav player...
main advantage:
I can get to places on the cue ball when it is close to the rail that aren't available with a 13mm.
really that is about it, other than the fact that whenever I try another diameter stick the cue ball doesn't do what I expect. maybe because I am just so used to it
disadvantage:
It is easy to miscue when hitting low, it can get much lower than a fat shaft.
other than that I believe the contact point between the tip and cue ball is the same size no matter what size the tip. It might be just what a player
likes best
steven
I hope you try it, let us know how it works out.
edit
I just thought of a test I do with different sticks
I set up a ball on the first diamond of the short rail, cue ball on the spot down the other end.
hit this shot rail first.
with my stick I aim exactly where I need to hit the rail and if I miss the shot I am surprised... I am a favorite to make this shot, not bragging that is just the way it is.
with a fat shaft I will hit the rail almost a full ball away from where I aimed.
and it works the other way as well, if a give a fat shaft player my cue he will absolutly hit the object ball full in the face.
don't know what's up with that.