I don't know. I've never seen a four man scramble team come in over par.
But then I've never been in one of those things that I didn't suspect quite a bit of cheating going on.
I won't even play in them unless I just want to donate to the charity anyway and have nothing better to do.
Usually around 15 to 18 under wins, and even that won't win if they sell Mulligans. If it's four scratch guys I think nothing of it but when it's four guys that can't break 90 I figure we got ripped.