I know that this is a Bighorn site, but I want to comment on the positive side of the dual pane windows (as I have done in other threads in this forum). We have them in our Grand Canyon and they are definately a positive addition for several reasons. When the temperature outside is cold (below freezing) or hot (high 80"s) the windows definately act as an insulator in that you don't feel the cold or the heat reflecting through them like you do with single pane windows. We have had no condensation with the dual pane glass. And, BTW Scott, I definately appreciate you candid answers and promptness, considering your schedule.
John