Ah, ok. I definitely assumed some positioning similarities between ASA and USSSA that clearly don't exist!
(At least not in the U-trip league I was schooled in.)
Our BU's, with any runners on any base, are always just inside 2B, cheating a step or towards 1B.
BU's don't go out on balls, even ones that are going to be questionable on the catch--which I think is definitely weird. They're always inside the basepaths. And the BU's have just about every out call in the outfield, routine or otherwise. One exception: nobody on base, someone hits a high fly down the RF line. BU will run from his starting position (behind 1B) to get in position to rule on a potential play at 2B, and the PU will have the catch/no catch in right.
Thanks for the replies--even though there was some unwitting "apples and oranges" going on there!