I bought some of the G-5's to try out for this season. They just don't seem to be sharp enough to me. I finaly got them sharp enough to shave hair (barely), but they look like they will hold a edge a lot longer than my Muzzy's. Especialy if I happen to hit bone. I have never thought I would try mechanicals but if the G-5's work out this season I might have to try those out. They look like they might be as sturdy as a lot of fixed heads. I guess I'll just wait for input from all the mechanical users.