Principally you should be able to test it in A4000 besides another card, PIV for example, if you get PII monitor file to the Devs/Monitors. And you can have settings for several monitors and use them individually. The same settings don't work well for PIV and PII, as where PIV tolerates 135/85 MHz, PII tolerates 85/55 MHz; usually 8bit doesn't overstress PII. I had once PIV, CV64/3D and PII+ working together - a very long list of available screenmodes...