In the almost two years I've been cubing, I've never felt like I reached a plateau. I never practiced an event tons without improvement, likely because I practice everything from 3x3 to 7x7. Whenever I got stuck on one event, I could practice others and beat PBs. I feel like I'm finally reaching a more difficult plateau in 3x3, though. My best AO100 is 12.94, and getting a sub 13.20 AO100 is pretty normal for me. I've gotten lots of low 13 averages, but am not really breaking through. I'll probably have to do something other than just a lot of solves if I want to improve more. Slow turning. New fingertricks. Metronome solves. Something. A new cube is worth considering, too, although I don't expect to average any better than 12.6 or so with a perfect cube. It's odd that 3x3 is the first event I reached a true plateau in; I'm much better at 5, 6, and 7. You'd think I'd run out of improvement room in those first.