Since I've started out with the one of the harbor freight tool sets, I don't have that much money invested. So I've felt pretty free to experiment with the grinds on some of them. The little 1/4" spindle gouge, I reground and got rid of the sharp corners ( it's almost a bowl gouge). When I first used it afterward I noticed it was way more aggressive at cutting. It kinda scared me at first. Now I love it and it's one of my go to tools. That told me that changing the grind can really affect the feel of a tool.
My round nosed scraper is pretty much re-ground exactly the way John described.
It comes down to you and you technique, so you just find what works for you.