This book has been my bible for decades, such an efficient way to build and maintain good technique with limited practice time.What I did was to get a book by Dohnanyi on finger independence and oh boy after a few weeks of that my piano playing is improving to the point that I actually look and sound like I know how to play.
It's interesting when you transition from real to midi piano playing, you get the chance to forensically analyse your technique. The independence exercises in this book are pure gold for providing consistent and controllable weigtht on all keys with all fingers (e.g. record something chromatic and check your midi velocities, a great reality check!).