My take on trailers is that they are sacrificial, hateful f'king things. Unless brand new, they're just waiting to bite you on the arse if not constantly pander to to keep the ba**tards happy.
I do enough to make mine safe and reliable,
and go to town on them pre-sale. I'm fortunate that my launch slip is 3m from home. The 70m round trip to have the O/B serviced did come with a little added excitement. My F-in-Law found it quite entertaining.
The Parrymore that the VM is on the prob the best that I've owned. I've had a couple of Indies, standard bits dissolve or fall off.
The SR trailer is locally built from cheap parts.
Can't remember the name of the trailer that my 6.5 VM was on, it was complete shite. Spittle binned it off pretty quickly after purchase.