I just picked up our new 2016 Sightseer 33C yesterday. We drove it home in a wind storm. Neighbor said that there were gusts to 80 mph. Two different people were killed by falling limbs.
I had the dealership install s rear trac bar, rear sway bar, and Safe-T-Plus steering damper. Had problems with the rear sway bar as I have the new 2016-F-53 chassis with a six speed transmission. The sway bar that is designed for the 2006 through 2015 chassis did not fit. Roadmaster sent a team to look at the new 2016 chassis. They fit a sway bar designed for a Tiffin on my coach. Roadmaster got the data that they need to engineer sway bars for the new chassis.
It drove well. I felt the sidewinds but they were manageable. I didn't feel the need for a death grip on the steering wheel. I was passed by several 18 wheelers and a bus. I didn't feel a bow wave. One 18 wheeler cut off a side wind for a moment and I made a slight correction.
My.operator's manual advises to get an alignment after the coach is loaded for travel. I had our 2006 F-53 chassis aligned when new and the alignment shop added wedges to adjust alignment. The alignment shop ssid that wedges allow them to adjust castor without bending the axle. My reading on this web says to get as much positive castor as specs allow to improve driveability.
Safe travels. JD