- Nov 12, 2019
dude you dont need any winter variation or zblls to be sub 30. probably improve your f2l efficiency and fingertricks. lookahead isnt necessary until you hit a wall in your improvement after nearly mastering the other two skills. also probably work on cross because most people who dont avg sub 15 have fairly bad crosses. go for 6 moves or less per cross, but sometimes you have to go for 7 or 8 if its a really bad case.