>>> The 7402s get my vote for best single pivots, too. I really can't think of anthing to improve on them. Sounds like you had the same idea as Campagnolo with their combination of single-pivot rear & double-pivot front.
Yep. I was the differential brake setup years before Campy went there. It only makes sense of having more pad clearance at the back, and more power at the front.
The absolute best brake setup I've found: Dura Ace 7403 dual pivot on the front and single pivot 7402 on the back. Perfection.