The only thing in common between the Genius and the Einstein were the Mastermind name different surface, cover, and core. In my opinion the Einstein is the better ball between the two though.
If your having a hard time getting it to turn the corner though you need to increase surface not decrease it unless the lanes were so toasted it was burning up. The Einstein was more of a strong benchmark piece for me though if you want angular the Braniac would have been a better choice.