I have never listened to any of these 3-motor tables, but the configuration shown, where the belt contacts the platter on only one side of the "triangle" would seem to be a worst-case set-up for "belt creep", as first described (to me) by Mark Kelly on Vinyl Asylum. In fact, to minimize belt creep, the belt should contact the platter over as much of its circumference as possible, e.g., the pulley of a single motor should be snug up as close as possible to the edge of the platter. Or you can use a capstan-like extra pulley to keep the belt in contact with the platter a la the Artemis turntable. (I think that's the one with the capstan. Could be wrong.) Other solutions or ways to at least ameliorate belt creep have been proposed but are not commercially available. But 3 motors makes no sense to me.
