Holeshot GNCC's rear circumfrence difference
 

I just put a complete set of GNCC's on my ex. The rears were the 20x10x9's. I noticed the left rear was visually smaller than then right so I took a tape and measured. Sure enough the circumfrence on the left was 1" smaller than the right with both tires at 6psi. Is there anyway to correct this? I had to pump it up to 12psi to get them to be the same size. Will adding more air to the left, say 20psi and leaving it a while, allow the tire to "stretch" some to get to the same as the other side?? I sent an email to ITP to see what they say. I havent rode it yet but I would think it would either pull some to one side or cause the tires to wear uneven. Has anyone experiaced this before?

On another note my old tires had slime in them, what a mess!! I don't care if it might have saved me a flat in the past I don't think I'll be using it again.