So I'm looking at vintage razors in save money in the beginning. And one thing I notice is that they all seem to have a slight curse to the cutting edge as opposed to what seems to be flat edges on new razors. I guess this is the smile right?

It would seem to me that would reduce surface contact with your face requiring more strokes and possible induce an urge to swipe or arc the blade and maybe cut yourself.

Am I confused? Does this effect t learning curve or just the shave in general?

Thanks for your help.