Life In 19x19

At first I always played sanrensei as black, then I switched to tengen + approaching everything that wasn't a hoshi or sansan right off, and now I'm doing the orthodox because I'm sick of having no corners by middlegame.

Gogrinder for iPhone has a nice set of 150 basic problems, and it shuffles the color, position, and order of problems every time. I'm trying to be able to score 100% on it on every run-through in hopes of it yielding some improvement.