I think I've ruled out P tires.
Reading this thread for the third time:
RV.net thread: ST vs LT If I stick with ST to keep it simple, are Maxxis still considered the gold standard of ST tires? I don't see a Maxxis 8008 that matches the specs of the current tires we have (1,620 lbs. at 65 psi).
Maxxis 8008 SpecsJust trying to get a little direction to narrow the decision down some. I don't want to take trailer tire advice from an auto tire store. . . my questions in the past demonstrate they rarely have sound opinions. I've found it's better to know what you want and tell them to find it for you.