My B3200 is 15 years old with 850 hours, always in a heated shop, now about those tires... They are still in very good shape but I'm starting to get flats... How often do you replace tires?
Flat Out worked on mine.When i had it mounted ,the guy said it would never hold air.It had deep cracks all in it.I put Flat Out in the tire and 6 months later its still holding up.Never added any air since and i use tractor a lot.