Been away quite a few years from having a motor home and looking to buy a good used unit. I have been considering a used 2008 or 2009 Gulf Stream Supernova 6400 or 6372 model. The 6400 has the floor plan that has every thing I like and want but I am concerned with the rear over hang and ride. Have reviewed both good and bad reviews as far as ride. I am willing to upgrade the suspension to air ride if that takes care of the issues. Really would like some constructive comment from you Gulf Stream owners.