having same problems with photo's
They've gotten a ton bigger! I've not tried to do an all-LED grow so I can't speak much to those white spots. Mine have just a couple of little spots on the leaves with white marbling showing but not looking unhealthy really, I was thinking it might be marginal calmag deficiency. Yours are a lot more concentrated and whiter. Are you turning them regularly? I turn and move mine a lot just for my supplemental LED panels, based on some stuff I read about LEDs not throwing light spectrums out evenly. Saw a great thread where a guy grew an auto on a slow display turntable so that it stayed moving constantly. Maybe this is just burn-in? But you've got some growmasters following you so someone else here can say better...
Looks really good, glad they're adjusting to their new home.