Sorry hit the wrong key.16th and final shave with my 1st Kai blade this morning.
Anyway, my shaves with this blade started to decline in quality since about shave 12. Still smooth, but efficiency and ultimate closeness haven't been the same. For me, life's too short to continue with a suboptimal blade even if it's still pretty good. Overall, though, my experience with this Kai blade were superb in every way. Smoothness, lack of blood and irritation, efficiency and closeness all were as good as it gets. I'll be glad to try another one, but next time I'll try a different razor and see how that goes.