Hey, Richarlt,
can you tell me why you opted not to have the lower arms on your hitch, similar to the one Bushtec sells? And what does your top arm attach to??? It seems like there would be a lot of sway pressure from side to side with such a long, curving arm, especially on curves...? You obviously did this for a reason. I am curious. Thanks.
I'll let the cat out of the bag, the engineers at Polaris made that fin in the rear deck to house our hitch system......J/K (but people have wondered?).
Our 1/4" plate, carbon steel center piece mounts to the front piece of the 1-1/2" steel frame tubing of the SS. The two 1/4" plate side frame rails mount to the 1-1/2" steel tubing frame at the seat belt mounts. So we are pulling from the beefed up tubular steel tub that the roll bars and seat belts are mounted to.....very solid!
We looked at all kinds of crazy options. We wanted a frame mounted hitch for extra capacity and rigidity that would house a 2" receiver to allow for various accessories making it multi purpose. Making it adjustable and non-obtrusive with the ball removed was another big factor in the design. We also didn't want to have our hitch supports covering up the rear wheel and disrupting the look of the SS. We learned that the rear aluminum subframe had issues with stress fractures (rumored to have come from overloading the Corbins???), so we definitely didn't want to touch that. We also did not want to touch the roll bars. So we finally settled on the adjustable frame with the truss rod adjustment.
My personal preference is to put a gooseneck on my jet ski trailer and pull from up high (1200 lbs). There is no side sway when you hook up on top of the wheel (I have a video on youtube showing how stout this set-up is). Due to popular demand, we came up with the diamond drop hitch for lighter motorcycle type trailers (up to 550 lbs towing). We do get some side sway with the drop hitch set-up at low speed maneuvering with heavy tongue weights. We have not noticed side sway when pulling down roads and highways with it (Noel Hughes at Cycle Springs has a video up showing him pulling another SS on an SS trailer which has to weigh at least 2400lbs). I can say with confidence that if you are pulling under 550 lbs with the drop hitch, side sway will be minimal and will not affect handling any more that if you were pulling with any other hitch.
I'm willing to let you test one of our newer beta units out at dealer cost if you are interested, no strings attached.