Dang, I’m really enjoying the ride! See my review of the FMB Paris Roubaix Pro.
If you ride tubulars and your fork and brakes will clear 27C, I heartily recommend trying the PRP in 27C size, it might pan out as a grin-producing experience. There is also a 25C version which I have not yet tried, as well as the non-Pro version (Pro version has sidewall protection and is a bit heavier).
I’ve now tried the FMB Paris Roubaix Pro at 82, 90 and 100 PSI. At 100 PSI, this is one fast-rolling tire, yet still compliant and still with tons of grip. Using 100 PSI is probably better (for my 175 pounds) for fast descents, because the tire deforms a little less under high speed cornering.
Also, the PRP is very quiet, definitely lower noise than my usual Veloflex Record.
I like the Paris Roubaix Pro enough that I think I will be ordering a 700 X 25C size that will fit on the rear (25C will clear the seat tube, 27C too tight), at least once I put some more wear on the Schwalbe Ultremo HT currently mounted on that rear wheel.