HighGFX modes are very usable in 4-16 colors on my A1200 with 060 @ 50 MHz, almost feels as fast as my A2000 with 030 and Picasso 2 feels like in 16-bit 1024x768

I dont think you need to cool down the scandoubler since it is using lower voltage parts, in comparison with my previous DCE-scandoubler that I tuned with a heatsink the Indivision runs a lot cooler.
Yes that DCE-scandoubler was actually too hot to touch so the heatsink was not a show-off thing, however it worked excellent with and without heatsink
