XtraSmiley
Legendary
I think most people do exactly what you do.I usually let output default settings in generic 4:3, I've installed the latest Beta fw to get Sega Mega Play to sync, but no success.
I've had sync issues with Green Beret PCB, Sega System 24 and Atomiswave in 15 kHz as well.
The point of this thread is that there’s actually more precise settings that get a better picture.
The generic settings generally do work for everything.