Inspect as closely as you can for cracks. Sometimes they are not obvious.
My large cracked on the bottom. I did not notice it until I removed the egg from the table for cleaning. I turned it over and noticed a crack all along the bottom. As I looked closer the crack had started to work its way up the side of the egg.
I'd also offer $400 and a very legitimate reason for offering a lower amount is that the lifetime warranty only extends to the original owner.
2 Large Big Green Eggs, 1 restored Weber Performer in Green, 1 S-330, 1 S-420 and 1 AZ BBQ Outfitters Custom Tombstone Style Santa Maria Grill and Smoker. Proud Member of the Zero's Club
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"earthbound but aspiring.... A lumbering soul but trying to fly...(with)...not enough wingspread but plenty of intention."