Nice that you got it working, what do you think about the speed of the Radeon compared to the voodoo5?
I have two unused Radeons, they work fine in OS4 but were very slow in OS3.9 so i put my Voodoo3 back. But the speed was so slow that i suspect it to be some user error. I didn't need any benchmark program to feel how slow it was. Please say that it's "fast" so i can get motivated to try again

It's very easy to duplicate the screenmodes from the voodoo to the radeon in P96mode btw.