I am thinking of buying either a Z shaft or the new i-3 shaft. Could any of you give me the pro's and con's of either one. I am looking to try a thin shaft and both of these are I believe are 11.75. Also one other question, I have a great custom cue to which I would get one of these shafts to match. Would it be just as good to have the cuemaker make one of the two shafts I have to the desired 11.75. Take care and God bless our troops.