My URJ202R has PA66+PA612-GF30
Matt, I've just got into the shed and checked mine (Dec 09 build) and it is definitely GF30 not CF30 and have asked the guy on LCOOL to re check his number. The other letters/numbers match yours.
EDIT: The guy on LCOOL rechecked his and it is the same GF30 so the material is the same as you guys but we don't seem to see the issue down under. Ours will probably leak on the bottom.

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