Mark, in my view there is one thing more to emphasize: With OTR (Prevost) the coach is cooled without closing the blinds/drapes. In fact, the OTR has to because it won't work with the blinds down because the OTR ducting (on non-slides, certainly) by using ducting/grating at the base of the windows. Closing the blinds blocks the air and blows/bows out the blinds. Addtionally, when the OTR is used (and I would follow Jon's advice about using CruiseAirs while on the road), it will cool the whole coach whether the bedroom and/or galley door is closed or not. Now I guess I will wait for the incoming as well.