I am using my MiSTer-Setup with my livingroom-TV, a Samsung-LCD. Using vsync=2 (single framebuffer, smooth scrolling) is a blast with NES, SNES or Genesis. I am really enjoying this perfect experience, the scaling and also Sorgeligs clean, very well designed UI. I actually started PLAYING the missed gems and stopped fiddling around with emulator settings, such a great experience.
Said cores output NEARLY straight 60hz, something like 59,9 or 60,1. My TV can process this very well and I think most TVs can. I am forced to use vsync=0 (off) for Neogeo (Output 59,2hz) and Turbografx (Output 59,7hz) because my TV has syncing problems. From what I read, many TVs have these issues. The GBA-core by FPGAzumSpass has a GREAT option to sync the virtual machines output to your TVs rate, so setting the output frequency to 60hz straight. I can't say how much I'd appreciate this for NeoGeo, Turbografx, Gameboy or future Cores like Turbografx CD or Jotegos CPS1. I read and understand that this is a complicated process, still I wanted to let all developers know that the feature would be greatly appreciated by me and many other users. And I'll be happy to appreciate this with my wallet, as far as I can do.
So this topic is meant for other users to join in the chant, if they do want this feature. I am aware of the fact that changing the frequency also means less accuracy. That may sound like something that is leading away from the concept a mister, but as an OPTION it will also be a much more pleasent gaming-experience for many users, with timing differences, that should not bee too easy to sense IMHO.
Feel free to let me know what you think