I'll leave aside the part where you're screaming from the rooftops that Kale and etabeta suck and focus on one fact: MAME/MESS architecturally cannot achieve full bsnes level accuracy as is and I'm not convinced that should be the goal. Yes, we can get much better CPU timing than we have now and that's important, but from what I've seen commercial games are generally a lot more forgiving then byuu's synthetic tests.