It's easier to say what grinds can't be put on which flute shapes. I haven't tried very many different grinds, as I'm pretty happy with the 2 I use. That said, I was unable to get an Ellsworth grind on a V flute--it needs a parabolic/elliptical flute. I can get a mildly swept back/not truly an Ellsworth grind on Doug Thompson's mostly V flutes. The more open, tending towards a U flute seems to be best for the Bottom of the Bowl gouge.