Hey Jim, I'm in the office waiting for my computer to process pictures of course of Hayden.
Ok..you've touched upon the primary principle for John and the part that is at odds with PMTS.
Going down the fall line as described, John uses the uphill baby toe edge to turn the skis and change direction by applying light pressure to that tipped skis outside edge. This is the UPHILL ski and tipping to the baby toe edge (the entire outside edge of your boot) moves the skis in that direction. Now both skis will be tipped together but the uphill ski baby toe edge is the engaged edge causing the new direction change.
If you have a rotary sander at home....fire that baby up. While running if you hold the sander flat on a hard surface, it stays straight. BUT if you tip that sander to the RIGHT outside edge, the sander WILL move to the right. This is the EXACT principal John teaches to control direction and speed in the bumps and broken snow. I have found this to be very effective in all mountain conditions.
Variations of this method is used in PMTS but only variations. John also uses principals of PMTS in his everyday skiing but this one technique to me is truly outstanding to use in better speed control in bumps.
Can't wait to take it on the snow again. Hope this makes it easier to understand. Now, go out and buy of rotary sander!

Best,
Gary