One more update:
1) delighted with stopping power of both brakes;
2) astonished by the very light return spring tension of the calipers, compared to Campag.; no "third hand" tool required when setting cable length
3) rear caliper has trouble pulling the cable all the way back; I have ordered a set of Shimano Dura-Ace BC-9000, since my brake cables are old, anyway (housings at least are OEM from late 1981/early 1982);