Ha Ha, your entitled to be a bit one eyed, in my opinion, Sabilize was and is a great mare and we are seeing through her son the benefit of your investment in the breed, I can see what you say about "overall type" , but to my eye her build ( and that same build I see in Sushi Sushi ) was not "pretty" but a frame designed for speed.
Probably one of the multitude of reasons, Art Major worked? He being so perfectly balanced in conformation? I see Art Major is crossing very well with Safely Kept mares thus far and similarly ( whilst there is also an obvious outcross advantage) the safely kept mares are generally quite angular, built for speed types.
Additionally I think Art major is getting good results from mares that could get "on the toe" a bit, and getting a few from other types of mares that are inclined to be a bit too relaxed.
Cheers,
Dan