Sea duty, whether the ship is underway or not, is far more arduous than shore duty - it just IS. As a boat owner, just consider the time you spend keeping the boat up versus your boatless next door neighbor. So it is with a Sailor assigned to a ship in refit. In fact it is some of the worst duty in the Navy because if you are not off the ship at some training course, you work your butt off on the ship with many non-technical tasks that the Navy would not pay the expensive yard workers to do, and you don't even get the chance to take a moment to lean over the rail and watch the sea going by. So as far as I'm concerned, sea pay is highly deserved ANY time you are assigned to a warship.