I'm working on doubles and singles, mainly singles 16/doubles 32 combined together. I'm also working on limb independance, my teacher has me doing 8th notes on the hi-hat and then 8th note paradiddles with my left hand and right foot (UGH). I'm also doing some sticking exercises, RLR L R and RLF R L and now, thanks to drummer, I'm doing RLRLKK, which is very cool. I'm also still listening to songs and trying to pick up what the drums are doing. That's been difficult for me because for years I was trained to listen for the high pitched sounds of morse code so the drums and the bass guitar are hard for me to distiguish........ Anyway, what are you doing to sharpen your drumming skills, if nothing, there's no better time then right now Pick up your sticks, put your drumming shoes (or sandals ddrumbum) get out that practice pad and get to it!