OK, as I am temporarily reduced to an armchair skiing critic
, I’m going to give this a shot! Along with the fact that since this is not a requested MA for self improvement, it means that if my observations are inaccurate they shouldn’t cause the skier any harm because he is not likely to read them!
It strikes me that Sato has some elements associated with PMTS movements, such as foot pull back and cross-under, but to my eyes he doesn't actually deploy fully formed PMTS movements and is definitely not a PMTS type skier. For instance, although he is using cross-under at transition this is not accompanied by him patiently building the high C by fully committing to the stance ski and resisting steering. In the longer turns, I think he uses cross-under to laterally launch his body mass from a wide stance so he ends up banking (not counterbalancing) with considerable weight remaining on the inside ski resulting in shins that are not parallel and thereby, too often disparity of edge angles. It strikes me that on some of his long turns he is actually using the straightened stance leg as some sort of stability outrigger with the inside leg taking a lot of weight and with its sometime higher edge angle being used as a turning rail to “sling slice” him and rotate him through the turn evidenced by his outside hand moving forward as the turn progresses. His only nodding acknowledgement to counteracting in a turn seemed to be the turning of his head. His inside foot pull back was accompanied (and graphically illustrated) with a stance foot forward push, so add this to his initially squared up upper body, the net result is early steering and progressive rotation. I admire his dedication and obvious skills and overall skiing prowess on a variety of terrains but I won’t be selecting him as a motivational reflector of PMTS movements.
(By the way, my promised carving MA sequels never materialized as my Morton’s neuroma suddenly worsened in early summer (literally overnight) and became a permanent feature in my waking and walking life and drastically curtailed all my activities. I am now in the early stages of recovery from cryo surgery for the neuroma and am optimistic that I will be back on skis towards the end of February albeit for a truncated skiing season. It will of course take several further months to regain a reasonable level of fitness.) As you might guess, I'd much prefer to be submitting video for MA than commenting from an armchair!