Not all wood is going to lose it's interior moisture content in 2 years though. When I stack multiple rows deep it takes many years for the inside wood to season. I had ash 5 rows deep and still had a m/c in the 30's after 3 years. Single stacked in good sun/wind(which everyone doesn't have) I can get on board with the 2 year deal for everything minus the oak.
Yes, you're right. Five rows deep is going to take a long time.
