I have one of each, both purchased new but shave ready so I have not had any of the honing issues, I guess that was someone else's problem.

I have touched them up on a 12K Naniwa but I have not really noticed a difference in performance at all. Maybe the TI holds its edge a little longer but not really by much.

I prefer the TI, but in reality that is only based on aesthetics and personal preference.