I have a set of the Mudhugger ones on the way though a bit wary of the rear one eating holes in the seat stays...Some horror stories around, even with the correctly applied frame tape etc..
I noticed the rear ate through the tape in just a few days on the trance, so when I afixed it to the voltiac I used all the zip tie holes. I know it sucks but I dont leave it on. I check the forecast and take the the rear fender off once dry ground is on the way.
My plan is the modify the rear fender mount a bit by drilling some holes above the small flange and mount the bottom flange of the fender to the lower side of the upper chainstay, using the zip ties to pull the fender againts entire height of the chainstay.This will eliminate the pressure points by creating at least 10 times the mounting surface area. I'll send pics once I'm done. Its gonna be simple...eek. I never learn.
This combo works in spades though. My ride today had both tires totally 100% plugged up with thick tacky Kentucky clay. To clear the mud I rode a mile in wet grass. Here are the after pics.