I have a few razors which are crazy sharp, but not all shave equally good.

1. FWE Special, this blade makes hair disappear no noise their just gone when doing hht, and shaves great.
2. Joseph Rodgers another scary sharp edge and shaves great.

3rd Johan Engstrom frameback wedge. Probably the sharpest edge I've seen
Sadly one of the worst shavers imho, feels like a cheese grader on my face.

I am not sure how this applies to this topic other then to me sharpness is only worthwhile when coupled with smoothness or shaveability.

Cheers
D