I used a voodoo5500 for a little while, since the voodoo3000 was horribly slow when switching between screens because of the low videomem. With the higher amount on the 5500, the screenswapping became lightning-fast again. But any increase of speed, in other areas, I surely didn't notice. And to take benefit of the higher amount of videomem I had to let Warp3D go.
And the most anoying thing was when I rebooted my amiga, the mediator suddenly did not detect my voodoo5500, and I got no video output. The only way to get it to function was to turn the Amiga off and on. Then it was detected again until the next reboot. This seems to be a common problem, and Elbox claims it to be either bad contact of the mediator and the CPU-slot or a Mach-chip. I finally got really annoyed and took my whole A1200 apart and cleaned every contact with alcohol, but to no vail. The voodoo5500 behaved as before. I tried to switch back to my old voodoo3000 again, and right away my amiga worked like a dream again, except the switching of screens offcourse :boohoo: