Thanks so much for this... I'll look at the links and do my homework. I know plenty about load ratings - indispensable when purchasing tires for my 1-T truck. You need to consider the load, use, and speed under which the tire will be used. I assume the same goes with the trailer.
I had my TT in the shop for an inspection... what I mess. They had it for more than one month and haven't been able to complete the inspection. The only job they completed was to rewire the shore cord and repack my bearings. There were also a few surprises... I had to pay $700 and they didn't even fix anything. I know now that I will have to do everything to my TT myself.