Pontoon storage....

I know already that some of you have no need to store yours as you are in a warmer climate , but up here we get 4 1/2 months of winter so how do you store your toon for the winter? Do you deflate it completely or leave it half full? I have had rubber waders crack when stored folded and my poncho also cracked. Is this a problem with toons? I have a fishcat which I believe is quite a good brand. Should one spray them with something like armour all or leave well enough alone.

Thanks