While your intentions are good Joe, I prefer to stay with the technique that gave birth to Piano Geniuses, like Glenn Gould, Van Cliburn, Horowitz, Mozart, Chopin, Bach, and many others.
Scales are hard, but practice is the only way to get better. Play scales for a MINIMUM of 30 minutes each day before you begin playing your songs, it's supposed to be a warmup, and you will see improvements.
Joe, I checked out your website, and it's a sad story what happened to your finger, but not much detail was given, can you give some more info how your injury happened?