Geez, guys, as Max suggests, it shouldn't surprise anyone that people respond at least as much to tone as to content. It's human nature, and it didn't arise with the Internet. Couched in tones of bitterness, ridicule, arrogance, or sarcasm, even the most brilliantly illuminating and accurate post is not likely to be received well. Anyone who expects otherwise should pay more attention!
Moving on to the "other" topic in this thread--this "wagon-wheel turn." I hadn't heard that expression before, but I agree that it can be a good exercise, and it can be fun. "Are they a technique that is used on the WC GS race course?" you ask, Max. Take a look at these:
and my favorite:
Clearly, the answer is "yes"--it is a technique used by top racers! Just as clearly, I hope, it was not the conscious intent of any of these skiers to do "wagon-wheel turns," or any other particular type of turn or technique--or even to balance on their inside skis. They were just racing, trying to get around the gates and across the finish line as quickly as possible. And this happened! As successful racers, they brought a wealth of skill to the game and, at least in these instances, those inside skis and their ability to balance on them and use them effectively came in handy.
I guarantee that the movements depicted here were "accidents,' in the sense that they didn't plan them, and that they would probably even explain them as mistakes. But I also guarantee that they were NOT accidents, in the sense that they have all trained and practiced skiing on the inside ski--possibly even practiced "wagon-wheel turns"--and have incorporated these moves seamlessly into their technical repertoires.
The mistake that is all too commonly made is to look at pictures like these and proclaim that you've discovered a new technique--the new way that the best racers ski, and to then "try" to ski that way yourself. Remember--that's not what these racers were trying to do! Like Phil and Steve Mahre's famous "White Pass Turn" (another turn that incorporated balance on the inside ski), it results from talented and well-trained athletes reacting skillfully to a situation--NOT from the intent to ski "a technique."
Situational movements--moves that "break the rules"--are just as important in skiing as "default movements." But the two should not be confused. Is it good to practice skiing on the inside ski? Obviously! Is it what you should try to "do" as a fundamental movement of your turns? No. And I'm sure that these racers would agree--as would Phil and Steve Mahre--the outside ski is where your balance should be, generally, by default.