That's correct, bells are the expert counter......that sounds kinda miserable. & there's no way to revert back?
I did notice that my percentage went back down to 100% as I was at like 101.2 or something previously. I think a few more puzzles got added.
Also what's with the bell icon/counter when you're viewing each puzzle category? Puzzles completed in expert mode?
Don't see a way to revert.