The fuller ground blades will tend to flex more as you use them so you have to be a bit more careful if you have a tough beard.

Something like the Prima Klang may get caught on the beard and then nick you when it springs free. The more wedge like razors will tend to just plough right through the hair.

That said, they will take a very good edge and as long as the razor is honed and you have good prep and technique, you shouldnt have too much of a problem! Just be aware that the blade will flex as you shave so make allowances for it and dont force it!