In the world of commercial trailers more tire weight is a good thing for best long term durability and reliability.
I doubt a rv trailer with the same tires/axles/wheels is any different.
The Maxxis ST8008 vs the Endurance gets posted a lot.
With over 30 rv website members reporting issues with ST8008s I sure wouldn't say their superior to any other trailer tire in the last 6-8 years. Complaints on haulers websites run about the same.
edit spelling (wouldn't)
"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers
'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides