Bob, I too noticed sidewall cracks on our coach tires just before we left Florida to come back to Ohio. I would not be afraid at all to switch to Toyo or Bridgestone tire from the Mickey Lands that are on it.
I know some truckers swear by the Toyo tires. Since we have to replace them so often with getting any wear from them, I believe the Toyo or Bridgestone would be fine.
I know some think the Mickey Lands
give a better ride but the cost difference I think the ride is not that much different from what I have been told.