And maybe I'm wrong, but I've always been under the impression that Sig has been in the wheel house for ages, leaving the deck well before he was Edgar's current age.
I think Sig's been off deck since he was 26 or something.
I'm not clear on what he meant by "we've got to find you a boat" -- he may not have meant BUY a boat, but just run one. Before the show, Johnathan ran a boat for somebody else during the crab season that Andy was running the TB -- they didn't share the wheelhouse until there were cameras in it. And they probably won't once the cameras are gone.
So if they could finagle a boat for Edgar to run (Ramblin' Rose might be looking for somebody!) they could get more quota and fish together (to the extent that you can without fishing on top of each other). I'm sure Sig's head would be spinning at the possibility of having one boat out continuing to fish when the fishing was hot while the first one went in to make a delivery.
The brotherhood dynamic of the Hansens is fascinating -- they're pretty codependent, and the antagonism goes back to childhood. From what they've shared, in Sig's mind he is the one who did everything right (in terms of taking on responsibility and devoting his life to the boat) for 30 years, as Edgar came and went as he pleased. It's very hard to shake the "flighty" label if that's your label within the family. On the other hand, he's obviously incredibly good at engineering and running the deck, and Sig is dependent on him in the way you would be to somebody who's not only extremely competent but also whose loyalty you don't have to question because it's HIS own business and money on the line. And, as usual, Norm is silent, so we have no idea which side he'd fall on in a power struggle.
I guess we were supposed to find the Wild Bill violence stories amusing, but they turned me off him completely.