I have both a CV64 and a Cv64/3D with flicker-fixer on a Cyberstorm 68060 A4000. The CV64 is much quicker and even though I have to use a 1084 monitor as well as my 17"samtron I prefer the Cv64 over the Cv64/3d.
I have never seen a Picasso 4 in action but I have heard that speed-wise it is on par with the CV64. Does the Picasso 4 really have video in and out, as in video capture and output?
Oh the other thing is the software: i use CGX 4 because i think it is faster than P96, for the Phase 5 cards anyway. I also hate the way icons are redrawn and flicker if you drag them with the pointer with P96. I also think CGX mode is more flexible in setting up screen-modes than P96 Mode