Airtab,

We installed Airtabs on our 36 ft. diesel pusher Monaco Windsor prior to our trip to Mesa, AZ in early November 2009.  It was too windy to calculate any mpg increase with 95 - 100 KM per hour (59 to 62 MPH) winds from Central Alberta to south of Helena MT.  The Coach handled as if it were glued to the road which was a real treat with the head and crosswinds we encountered.  Buffering was egligible when meeting semi's on two lane highways or when passing or being passed on four lane Interstates.  Our Monaco is a fairly low riding, easily handled coach but the Airtab are the best investment one could make for increased stability.

I would highly recommend Airtab to any Motorcoach owner.

Allan H.
Canada