"tinmac".....I read it the same way....changed springs out for air.
"JDShoemaker"....I traveled those same roads as you a few months ago and my DP didn't do much better. Many need to understand that when a road is relatively smooth, a DP will glide along giving you a great ride. When the roads become war zones, like around major cities, the DP's ride jsut as roughly and feel every pot hole. There may be some 45' high end DP's that are a little smoother, but trust me, a DP feels the same rough roads. We hit interchanges around Baltimore that I though would take the front end off. I keep my tire pressure at a minimum and run the best shocks I can.