DIY RC Trailer Hitch; "super flex"

Homemade Trailer Hitch using spare parts; I have tested the hitch in many off-road situations,since this video,
and it has performed above,and beyond my expectations,Inclines,Decents,extreme off camber's,and even full vehicle rollovers,the hitch has enough flex,
that you can roll the tow vehicle on it's side,and the trailer will still be upright,
"Depending on the trailer length,and weight"
I'm using the hitch on a 3d printed Boat trailer,hauling a Brushless converted NQD Jet Boat,and the trailer wheels are internally weighted,
Each tire weights just over 7 ounces,
Boat+Trailer+Tires= just under 2 lbs,
so in my situation,it handles rollovers nicely,
"fyi"the original paper clip connecting pin,was never used, I replaced it with a body pin,it works great,
and it's relatively easy too connect,
and disconnect,
Thanks for watching everyone,
Questions are always welcome