I don't know...but if 4 roof airs cause a Prevost to drive worse than having 4 Cruise Airs, I think I would "re think" my purchase of a Prevost. Roof airs are the LEAST of your worries of the "driveability" of a converted coach. So I guess I'm saying no, I don't agree. The only thing roof airs take away from a coach (in some peoples eyes) is aesthetics.