Barry, all good and nicely wrapped up. HOWEVER you have on occasion posted about what happens in the real world out on the highway, and trusting that.
The Maxxis M8008ST is the heaviest ST tire currently available and also gets the best user feedback. The Michelin XPS RIB is one of the heaviest LRE LT tires in use on trailers and people build shrines to it.
The Firestone Transforce HT is the only one I have seen where a tire is a bit lighter than its peers yet gets glowing reviews. It is in the 41 pound range while the Commercial TA is 44 pound range.
FYI regarding TireRack. That is shipping weight, not product weight. When a manufacturer provides a weight it is a product weight. If a tire is wrap in plastic it most like does not add much weight. When it is wrapped in a lot of heavy paper that does increase the weight. A shipper wants to make sure that the stated weight for shipment covers the actual shipped weight, and could care less about the product weight as manufactured.
And NO ONE has yet explained why the brunch of 35 pounders fail at the rate they do other than they just do not seem to be able to withstand the service they are ask to provide on large trailers. Which brings right back to the long ago pointed out inflated weight ratings these tires are given! In reality instead of a 10 percent increase in load capacity if they where given a 10 decrease in capacity, we would note be having this web exchange of thoughts.
At any rate it finally appears that some of the major trailer manufacturers are starting to listen to consumer feed back and move beyond these cheaply made tires. If a company as large as Forest River Inc takes the lead, which it appears to be doing, then the Keystone's of the World will most likely come on board also.
Chris