I got a friend who used to be a professional drummer and toured with a few well known rock bands (after their glory days). He tried playing the drums on Rock Band during Xmas and he couldn't get the hang of it. It was like he had to rewire everything he knows. He's trying to hit a certain drum to match the notes in the song when he should just ignore the song and just match the colors.
I am "improve balance and flexibility and identify target areas" all the way. I couldn't care less about the spiritual BS and knowing all the yoga positions. Thanks