While browsing and wishing yesterday I looked at 2 diesel MHs. A Monaco with GY and a Ultra Sport with Michelin. Same year and same milage. I would not have driven the Ultra Sport off the lot because the Michelin were cracked so bad. The GY on the Monaco still looked ok. I know where they came from how they are stored and care has a lot to do with tires but just thought it was kind of interesting. Didn't have to worry about either because I am still driving our HR which is need of a new set of shoes because of age.