What is the best type and size Crab legs to use for boiling seafood? Where do you get yours for a crab boil? Im doing a crab boil party in October. I can get legs (unsure of the size and type) for 6.99/lb at the grocery store this week. But I sort of want to make sure I dont get 30 lbs of crab legs only to find out I got the wrong kind! Any tips appreciated!