Blowouts on front passenger side tire

We had a total of 5 blowouts (Good year) before changing to Michelins. The tire dealer thought the tires might have been a size too small. We have had no problems with the Michelins so far. We also don't try to load the motorhome with too much stuff.
Each time we had a blowout CoachNet sent a wrecker/service rep and either changed the tire on the road (twice on the interstate) or towed us to the nearest dealer.