Bill Talbot's assessment of both of our mid-80s PDG Paramounts is spot on i n terms of rear triangle beefiness and related STIFFNESS,,,,and I stress ST IFF. In my personal opinion, my PDG is overly stiff. Mine is built fr om Columbus SLX, not SP, and I suspect your 85 is too, but maybe I'm wrong.
I see "CRIT" bikes as having steep head angles and high bottom brackets for obvious short fast circuit riding with lots of corner turns. This desig n, as pointed out in another post was primarily due to the popularity of CR IT races dominating the USA in the 1980s.
Regards,
Kevin Kruger - Grantville, PA