And FWIW, I hope renown in SH4 is for one thing, crew. The better your performance, the more sailors want to get on your boat, so you get the pick of the best.
In the US submarine force new installations should be a matter of course, not obtained due to reputation. My boat getting a 4 inch to replace the 3 inch should be more the result of a timeline, not whether I have renown IMO.
Refits in Mare Island, yeah