Thanks for the replies and suggestions, everyone.
BBinder--regarding fore-aft balance, neutral, and pressure on boot cuffs--good question (did CGeib put you up to this?)--and yes, probably beyond the scope of a "glossary," at least, although perhaps not for the full Encyclopedia (next edition).
But I'll say this--I believe that Mike Rogan does tend to prefer more pressure on his boot tongues than I tend to prefer. He also tends to keep his feet and skis closer underneath his body than I tend to--I enjoy letting my skis run out away from my body to produce high edge angles in the top part of the turn, when I can--and he may well have a different "purpose" and outcome in mind for these preferences. I think he often tends to prefer that his skis and technique produce a bit more "speed control" (braking effect), especially in the upper part of the turn, than I do. There are many sensations and outcomes that result from strong forward pressure that I, personally, do not tend to prefer (moves the pivot point forward, causes tips to bite but tails to skid, slows your skis down, etc.)--but your mileage may vary!
But it's largely personal preference. Certainly, both Mike and I make these choices deliberately (not necessarily consciously), rather than from lack of choice, in order to achieve the ski performance we seek at the moment. Certainly, there are also times when I pressure my boot tongues strongly (and purposefully), and times when Mike stands more neutral in his--again, deliberately.
As always, the key is not to learn "what is right" (dogma), but to master cause and effect, both unconsciously, as an athlete, and consciously, as an instructor or someone who seeks to understand or explain.
Today's skis are very sensitive to fore-aft pressure changes, and every change has an effect. The only problem is when the effect you seek does not match the movement you believe you need to make to cause it.
So what does this mean for you? It means...go skiing! Go out and explore the effects of various fore-aft pressure locations and fore-aft movements, in various parts of turns, in diverse turn types (the carving-turning-slipping-braking spectrum), in different conditions, speeds, turn sizes, slope pitches, and so on. Have someone shoot some video, so you can see as well as feel the effects. One of the main reasons I advocate a neutral cuff stance is that it keeps all your options open. From "neutral," it is easy to pressure forward or back as needed or desired. Explorations of topics like this are great foundations for advanced lessons.
Ultimately, train your body, not your conscious mind, to make the instantaneous movement decisions that will allow you to match technique with intent--power with purpose, cause with effect.
Have fun with it--and continue to question everything! Happy New Year!