Finally had a chance to watch the video posted earlier.
The "high-traction environment" U-turn technique is interesting, but looks harder than the clutch-slipping method I learned at RLAP. You have to get a lot of things right, and all at once. I haven't tried it yet, but I'll be astonished if I get through the first few attempts without falling over, or else running way wide.
We discussed shifting body position during the RLAP class. Crossing up was an option, but not really needed to pull off the U-turns or Figure 8's. I didn't try crossing up, because I had enough to do in getting the other things right. The motorcycle cop who did some of the instruction stayed straight on his seat the whole time. That didn't keep him from doing amazing things with his patrol bike.
That is to say, there are at least a couple of different ways to do a full-lock U-turn.
RLAP is certainly pavement-oriented, as it's mostly aimed at those riding big heavy cruisers. However, the techniques work with any size bike. Should also work for low-traction surfaces, since you can go as slowly and carefully as you like, as the guy in the video does on wet leaves.
2007 Vee with too many farkles