Scart you mean I guessSpot on @PascalP
Issue with the OSSC andVGASCART is that the LPF is always enabled and can't be disabled. Meaning if the supergun is applying an LPF, on top of the LPF the OSSC is applying, the image quality degrades.
Won't be an issue with the Sentinel as I'm utilising the THS7374 and have incorporated a switch to enable or disable the LPF as you desire.
Don't use VGA port unless its actually VGA or you are using a Taito F3.what does our OSSC critic has to say about this?