Thanks BillyRay, you having had a Montana with both types of glass have the experience to know the difference. I know when I put my hand on the single glass pane of the door window, it is much cooler than any of my double panes. I will hopefully buy one more Fiver in my lifetime, if Keystone wants my repeat business, they better keep offering DP as an option.
Don & Donna
Vancouver Island
2005 Ford F350 V10 Lariat CC 4x4 LB SRW 11200 GVWR
2006 Montana 2955RL
click on the little pic to see a big pic