Hi Keith! My girlfreind has small hands and my 13mm taper is uncomforatable for her to shoot with. What do you think of the 12.5 or 12.75 shaft tapers? Is there any thing I should be aware of between the two tapers? I am only familiar with the 13mm and have no knowlege of the smaller tapers. The shooter will be for pool, mainly 7-8-9 ball. Thanks!