Hi Guyz
I have just made a little much needed upgrade to my camper trailer by changing the tow hitch to a TREG.
It became obvious over the Christmas New year break whilst wheeling hard with the camper on the back the std tow ball was under huge stress and I was asking it to articulate more than it was designed for.
I had to moderate my wheeling for fear that I was going to destroy the std coupling and end up towing the camper home with chains
On steep hill climbs the angles demanded by the trail exceeded the capability of the std coupling and I noticed that I was bending the cr@p out things.
So I was lucky enough to have a mate who ownes a trailer spares repairs business (who owed me a favour) and he freebied me a very nice Treg coupling and welded it on.
I almost immediately went to test it on a steep incline that had previously been impossible for the std coupling and it was no problem at all in fact it still had probably 10 - 30 degrees? left to spare.
my 2c - the Treg style couplings are defiantly a good thing - highly recommended
cheers Hunty