Procar racing seats

Has anyody bought/ sat in/ or known anybody with Procar bucket seats? I'm looking at buying some new Procar Rally 1000 bucket seats (blue) to go with the interior of my 1973 swinger. I'm integrating a blue interior (rear seats, door panels, some trim) with black accents (dash and dash cap, A-pillar trim, carpet, upper door trim moldings). I'm thinking the dark blue in these seats will help with the blue-to-black integration, and the seats look awesome. However, I've never seen any at car shows around here or heard of anybody using them.
Just wondering what anybody thinks or knows about Procar and their line of seats.
Thanks

-Mike