[Doohickey]

I thought I heard that once you've been on a sub for an extended period of time, you aren't put on again.

I'm not sure what you mean by that. Can you expound a little? I'd spent eight of my 13 years on sea duty, which was merely "above average" compared to others I know.

[Cinnamon Girl]

I mean in particular serving in a sub as opposed to anything else because of the unique environment. Did I just make that up in my head? Maybe it was that there's a limit to how long you could serve on a sub for a given amount of time.

[UpAllNight]

--I'd spent eight of my 13 years on sea duty, which was merely "above average" compared to others I know.--

I would say above average amount of SHORE duty!