This is interesting. Being TX-based, I'm always interested in reading material to improve my game and maximize my quality time on the snow.
DiPiro's book really resonated with me, how closely does The Invincible Mogul Skier track with Everything the Instructors Never...? Not that I'm concerned that the information would be redundant, but I'd be more inclined to pick up Mead's book if it teaches a similar style (I'm assuming it does).
Mike’s book is substantially higher level. It’s also much more current in terms of approach.