I just put a NR headset on the Junior Moser today,

I think the Campy crown race is slightly tighter,
I had to take it off twice, and clean the seat with a jewelers file untill the race sat without light under it.

Installed with vise and a plastic headed hammer,(steering tube across the vice, race on the side, wacked between the legs with a plastic hammer - no fuss at all)
removed with piece of oak and a hammer