I have a 2011 Big Country. While traveling last week we experienced a blowout on one of the tires. These are the original and only about 18 mths old. The trailer came with the Power Kings. They are ST235/80/R16 E load. I was talking to a service rep when we got back home and he said these are poor tires and recommended the Michelin RIB XPS 235/85/R16 E load. Anyone out there have any ideas for a good tire for the trailer?