That is one hell of a thorough review, a really great job of describing the history of the evolution of the Watt/Puppy line of Wilson speakers. I could relate as I owned a pair of Watt/Puppy 3s many years ago. I recently went to listen to the Sabrina's, which I thought were very nice for a relatively small Floorstander. Great bass for a smallish cabinet and 8 inch woofer, great driver integration and more musical than older Wilsons with the Focal tweeter. I did sense that it was missing some air up top and my feelings were confirmed when I briefly auditioned the new Sasha 2s. Much more extended and airy and if you look at the spec sheet, goes to 27,000hz as opposed to only 21,000hz for the Sabrina. In my brief listen, the Sasha did sound wonderful. Thanks. Regards. Ned.