Yes, this is very confusing. Should wait untill Pat makes mame93 changes.
Good reason to drop using u-releases at marp...
As I understand it...
mame31 = suprmatk
mame92u2000 suprmat
k=>sprmatkd + add
new clone suprmat
k
So before Pat makes changes, and if you use 93u1, you should submit sprmatkd recordings as supermatk...and you can not submit suprmatk recordings cause that's not at marp yet. Huh! I wonder if I got this right...
After pat has made changes, you submit using right romnames...