I tried the Mudhuggers front and back, the front didn't keep much more mud off compared to small ones most people use and the rear portion of the front fender would catch the treads on harder hits. The rear fender I just couldn't get used to......it looks dorky and I constantly had to check that it wasn't wearing through the frame protection were it attached to the seat stay. Piece of inner tube worked the best.
I see the RRP is flanged up on the rear portion on the front fender, that looks like a better design, wouldn't get caught in the treads and catch the spray better. What RRP rear fender like? Is it effective for spray?