You pretty much have to go up two sizes to combat the shrinkage in length. Dryer dried, the Anvil ML compares to an AA MS in length. Line dried, they still end up shorter than my dryer-dried AA.
I posted some comparisons here ... I'm sure I have other pics, but being it's 5:15am here and I should be asleep, I'm not looking for them now.
The day old Woot shirts died
(petition courtesy of @no1)