Very, Very nice riffraff.
If you find down the road that the Rabud's are not sealing corectly. The ball's will need to be cleaned. This is a PITA with Rabub's as you have to dismount everything and then reinstall and reseal them.
If that time come's about. I'd suggest replacing them with TH unit's. the mounting hole's will be the same, but TH has 1 screw you backout a little and the whole plastic housing turn's aprox 1/4 turn. Like a baynot style. The ball's are then real easy to clean and reinstall without disturbing the mounting screw's.
http://www.outdoorsuperstore.com/sto...eyword~%20.htm