Mike -
This forum has seen quite a bit of discussion on skirting, though none of it particularly recent. The first thread that I remember was started by a member named ColoradoCop, probably back in 2004 or so. If you do a Search on "skirt", and wade through all the hits on "fender skirt", you will find threads like this one.
http://www.trailmanorowners.com/foru...ad.php?t=12621
Bill