So after reading through this thread it seems that there are "conflicting" viewpoints from personal experiences with SPS coating.
If it is does not last as long as "traditional" ceramic coatings and is just, if not more, prone to waterspotting as Guz suggests, then why use it??
Mike lambert says his experience is just the opposite and 512detail has some "observations" of his own on the waterspotting.
As Accumulator always says, "YMMV" (Your Mileage May Vary)
Makes one wonder about the "perceived" protection afforded by the appearance of water beading. There is no doubt that intense hydroscopic water beading has long been an accepted standard for any carnauba wax that it was still there on the surface. The more round and small, the better, hence my use of the word "perceived". Perhaps "disillusion" would be better. I sometimes wonder if this ultra-hydroscopicity (ya, there is no such word, but it sounds good) is a contributor to waterspotting. It sure seems to be if my vehicles with wax on them sits out in the sun for an extended after a rain. That may be a different experience if a vehicle that is coated with SPS is driven while it is raining and the unique self-cleaning characteristics of this coating greatly diminishes this waterspotting. Just some "logical" thoughts on waterspotting.