[UserNameGoesHere]

qqwref, yes, precisely.

I think it comes from the DDR parlance where SDG meant single digit great where it was implied you FC'd, had 9 or fewer greats, and the rest perfects (later, perfects or marvelouses). If you told someone you single digit great-ed something when you clearly either didn't FC or had goods, averages, etc in there they would laugh at you. At least that is how the term was used around here. There was also single digit good for the case where you had no greats, 9 or fewer goods, and the rest perfects, single digit average, etc...

Since FFR's equivalent of DDR's "great" is a "good", SDG in FFR terms will come to mean full combo, somewhere between 1 and 9 goods inclusive, the rest perfects, and no boos.

If you want to make a distinction between an SDG and a clean SDG, then perhaps an SDG can include boos whereas a clean SDG wouldn't. That would be the only difference, if such a distinction were to be made. You'd still need 0 averages and misses even with that relaxed definition. The only reason this might be permissible is DDR didn't have FFR's concept of boos (It had boos but they were more like worse averages).