+ 1 on this. IRD has them with roller bearings. Roller bearings are the best design, in my experience, for headsets.

I grew up in New Orleans and worked in a bike shop. The city is a natural testing ground for headsets. It is built on mud and silt. Consequently the roads are not smooth but full of bumps as there is movement in the pavement over time. Those roads were terrible to ride on but great at killing headsets,

The campy record headsets are just not very good. I've seen them die pretty quickly on those roads.

The stronglight roller bearings, on the other hand, were a much better design. Properly adjusted they are virtually impossible to kill. I'd track down a stronglight or get one of those IRDs.