I have started solving the 4x4, and i use the 2 at a time chain method to pair edges. I use a rubik's 4x4, and it sucks. So i was wondering, with this cube, I average 3-4 minutes. 40-50 seconds for centers, 1-1,5 min for edges, then 1-1,5 min for the 3x3 and parity cases. But normally, I average sub 30 with 3x3 cube. Should I buy an eastsheen, and what would my times be? I'd appreciate any advise and tips.