@dankcushions Hi dank. This is actually great to know, as I think you probably just saved me from disappointment.
So I'm working on an arcade build of sorts for the .221 set in its entirety. I guess I assumed here that I could download and align everything to lr-mame, but that doesn't seem to be the case, correct?
Should I just stick to MAME 0.78 and lr-mame2003-plus and go that route? At least I know those will work and that core is bulletproof.