No scandoubler needed if you don't go beyond hires. Interlaced, no good.
Not true, all modes available when you put the PAL and NTSC monitor files in devs are available and work well EXCEPT PAL HIRES Interlaced.
NTSC HIRES Interlaced and the lower res interlaced modes, including PAL work great, just the PAL HIGH RES Interlaced had a glitched in the scan lines. It displays fine, but the scns are reversed so the pictures looks strange. Its actually kinda neat to look at, but useless.