I used to get them from a buddys old man,those things are killer.I cook them the norske way though,there is so little guts,they get the flour/salt/pepper coating and then thrown in the oil and fried whole until done.The fillets peel right off and leave the rest.Cleaning the buggers is a PITA for the little amount of guts and I couldn't taste the difference between the cleaned ones or the ones cooked with guts and heads.Veterans day is typically the time they are running.