It's rich seeing you give advice about this. In your other thread you are showing us a bunch a shit, including;
- Setting your neo geo emulator to 640x480, when native res is 240p (and thinking it's "perfect")
- Applying a scanline shader when displaying on a CRT. What the fuck?
- having that scanline shader display vertical scanlines on horizontal games "because it looks better". Holy shit man.
I also see you say that you are playing on an MVS - dude... You are playing a MAME emulator that you have put into a MVS cabinet. That's is not an MVS setup. The MVS is the SNK hardware inside it.
One of the reasons that emulation is not an ideal solution is because any dummy can set it up and think they have a hot shit system - yet it's rife with errors in configuration, as well as errors in understanding (and respecting) the original systems.
I'm sure that with a bit of research you could set-up a great emulation rig. I can see that you have the skills, but do your research man, else you are part of the problem, and not the solution.