Honestly, I don't feel like Shiros are actually that amazing in terms of material quality and tolerances. I owned an F95T and tried to love it, but there were just too many problems. The bearing races are fragile, with loose bearings that are easily lost if the knife is disassembled. The issue of "Shiro shelf" on the lockbar has already been brought up, and I've always found it disturbing that on any of them you can push the lock bar over to 100% engagement with the lockbar insert, right up against the "shelf" with ease.
None of that screams tight tolerances to me. Certainly not on the level of CRK, or more comparable makers like Koenig or Holt. And when they start around $700, wheew boy. Hard pass for me.