Reviving this thread, any cuber still around? I am using mainly 3x3. I recently went crazy and bought the megamophix 2x2, pyramix 3x3, 2x2x3, 2x2, 4x4, 5x5 and 6x6 after a year on the 3x3. Suprising I manage to learn to solve all in a day. Which is true when they say you know the 3x3 you already can easily pick up the others. That is aside from the bigger cube of 4x4, 5x5 and 6x6 which took me a few day to memorize and execute the algorithm for OLL and PLL parity effectively.