Not sure if this will help, but I KNEW I was underutilizing my right hand (the mouse) as far as input, so I went and got a logitech MX Revolution 7 button mouse and forced myself to use it.

Once I got all the keys assigned, I could just FEEL the alliance in AV screaming "how the FUCK does he do that?"

Big Button=follow/target main

Turn left=all turn left, push scroll wheel to the left, ditto right. The wheel under the thumb is NOT a scroll wheel. It's more of a "forward/backwards" toggle - PERFECT for adjusting all forward/backwards just a hair without gathering them all up, doing a 360 and repositioning... once you get used to using both at the same time you can do some amazing things. And having your big button RIGHT THERE under your finger (mine is mapped to F1) is an OMFG advantage over banging a key on the keyboard.