Yep, the pirate captain that helped them take their ship do so on the condition that they implement some version of The Pirate Code. All major decisions are decided by vote, with each crewman also getting a vote. In practice I would rarely have the crew vote against the party, just cos that's no fun. But morale has been getting low, and if they don't address it, they may decide they want a new Captain and try for a vote, giving the players a crisis to deal with.

Loot is also shared out equally, except the captain/officers get two shares. The players decided that they all collectively share the position of captain, while also having other roles. So they all get twice what the crew gets. I believe this is pretty accurate historically.

I just let the players decide the route though, I'll only get the crew to protest if they haven't taken a prize for a while, or if I think the crew would have an issue with the specific destination they choose. One of the players has the role of navigator so she does a check to see if she does a good job of that. If she doesn't, I roll on my encounter table and something gets in their way, slows them down, or attacks.