The yo-yos were a One Drop Parlay, Mowl M+, and Duncan Metal Racer - All of them with clean konkaves (Although they could be knockoff konkaves… or licensed from different manufacturer, I get bearings mixed up).
I like a slight ringing noise in them, I find helps me hear when the spin is slowing. None of them are really loud or grating, and if/when they get there I’ll clean them again. 