Shawn, that's an impressive diagram. You obviously spent quite a bit of time on it. I hope it helps some folks think about some of the things you need to take into consideration when setting up your rig for towing.
We have a 6 week old 2014
Scamp 13 Std, and our tug is a 2011 Subaru Forester. I called
Scamp before we went to pick up our trailer in order to get the correct ball height. I was told the top of the ball should ideally be about 16" when the trailer was hooked up. For our car, I stood on the ball, and my wife measured the distance from the top of the ball to the ground. This simulated the 200 lb. tongue
weight.
I already owned a 2" drop / 3/4" rise ball mount for our Curt class III hitch. In order to get the 16" height, I had to use a 2" high rise ball.
2" Hitch Ball - 2" Rise - 1" Diameter x 2-1/8" Long Shank - 6,000 lbs Curt Balls C40034
I never heard of them before. Bottom line, it worked out great. We have no sway problems at any towing speed, and the trailer is perfectly level when hooked up.
I'm wondering why your trailer ball is 2" lower than ours? Is your trailer level when hooked up? We have similar options. I tried to configure ours to keep the tongue
weight to below 200 lbs. We have A/C, but that
weight is over the
axle, so not a factor. Did Scamp raise the frames as well as the ceiling after the 2006 fire? Maybe your
axle has the normal sag due to age? Just curious.
Tom