I'll be putting mine away for the winter on Tuesday
. I have used the same suggestions as above for the last four years. But i have never put anything under the tires. I just inflate them to around 55 PSI and have never had a problem with flat spotting. One thing I do that hasn't be mentioned is fill the gas tank up with non ethanol fuel and then add Stabl. I have read that fuel without ethanol is less likely to breakdown during storage.