I tried a friend's FP60s, and they felt flexier and didn't seem to roll as good as my 32-spoke DT RR1.2s, but I'm ~185lbs
I guess all the tests show that 60mm rims have to be reasonably aero, but I'm not convinced they're worth the money, even at that price. Maybe for tri's or TTs. i was happy to get back on my 'stiff as bricks' 30mm alu rims
No dimples