I'll leave aside the part where you're screaming from the rooftops that Arbee, Kale and etabeta suck and focus on one fact [...]
*fixed*, why you don't put yourself in that since you started the video emulation logic and I've simply followed your logic?
In my humble opinion, I don't think that our snes codebase it THAT hard to follow. Problem is that we need good plans to fix the remaining issues that are: mosaic effects, OPT and the obj limit flag (the latter actually shouldn't be in the video code in the MAME/MESS logic anyway), that's all. All the rest is machine/timing related plus small quirks here and there...
