On public, even when it's lightly attended, I can't do anything beyond bronze and even then I don't do spirals or backwards anything. The other guys (hockey) on the ice are too unpredictable.
That said, I do break down silver moves in the center. Like the first two lobes of the three turns. I can occasionally get away with power pulls and cross rolls on public though.
I need empty or light freestyles to go through my everything. The heavier ones terrify me and while I know the high level (triples) skaters can divert themselves, they still go hella-fast on crowded sessions, and that paired with all the young skaters that don't watch where they're going, it's a recipe for disaster.