In my experience, the mohair hood is much quiter, especially driving faster than 80 km/h. I can compare as I had three Roadster, two with mohair, one with everflex (plastic). On the other hand, for some reason, the everflex looks very sporty. Now I switch from "new" easy up hood to the very traditional 9 stud everflex on my new P4Supersports. It´s a little bit out of ratio, but I like to "work" on the 9 stud, I like it to be not perfect, I like it to be forced to drive more "open" without hood anyway.
