No personal experience, but I have family and friends with personal experience...and if it was me, and I knew I would be towing on a regular basis, I would put air bags in the back. Now, I know when people think of bags, they usualy think of low-riders...but my friend and his crew at
http://www.kpcomponents.com/default....egoryID=626139
make custom bag kits for trucks/cars/whatever you can think of....and they now use bags for lifts as well...anyways, they are in Central California...my home town....and that would be the route I would take fr suspension anyways...
Lenny