I bought some bling a little while ago:
But decided not to use them because my butt is too big for them, PLUS they don't have a 5 point harness exit in the bottom seat. So that's out, since the PCA requires a 5 point harness with the supporting modifications to the seat for their HPDE Schools. In other words a fixed back seat, 5 point harness, and a PADDED rollbar. Which is safer than a 4 point and harness bar, I wouldn't use that for anything but Auto X.
BUT! I kept the brackets for use with something else :-)
I am eyeing the NRG Carbon seats, in a large size, I've been told that the fit similar to the Evo2 seat, and for 650 shipped it's hard to beat. I'll need to weigh them both down so that they come in at the legal STX weight of 25 lbs, but that's ok.
Seats are a ways off yet... Tires and Entry fees are MUCH more important. But a gear head can dream...