Originally Posted by Gonzalito17
An interesting innovation for sure. But let me ask, did this all or partly arise because of an unfixably poor backhand?
I doubt it, it would be much easier to fix the BH then relearn how to hit the ball with the opposite arm. Dr. Fisher could probably help with this, if he's still around, he helped Pete with his. In the title of the thread, the Prof says it's a "workout", using two rackets is not legal in play.
Dan Millman, "THE WARRIOR ATHLETE", discusses the insights to be gained by learning how to do things with the opposite side of the body, thus opening up the opposite hemisphere of the mind.