Paul Comp is in Chico California , Nitto is a Japanese manufacturer..
I still use a old Campag 2 bolt seatpost , they were developed around the traditional leather saddles such as Brooks Makes
and even a wrench <C> made to adjust the bolt heads on top of their seat post
which is easily accessible with a leather saddle .. just lift up the sides..
the bottom adjustable bolts are better in Plastic Shell saddles.. that are less flexible ..