ah..

Never thought that my name would be mentioned here, yea I am gerrardchong.

Well, I can sub-25 with my DIY cube, but not OFFICIAL cube;
I say this because the coming Toy R Us competition only allows OFFICIAL cubes, I have a hard time using it.

To jingle: now I can solve 3X3 blindfold too

P/S:Toy R Us doesn't sell any 6X6 cubes, 6X6 and 7X7 only produced by V-cube for now.