Actually, the LCS ‘adaptation’ and conversion seems to have been a pretty comprehensive disaster.
I wont disagree but not because of internal bulkhead structure. While there have been many high visibility technical snafus, from what I understand (and this is just hearsay) one of the biggest issue that never gets discussed is that the ships were planned to operate with a skeleton crew and it turns out to be not enough to maintain them. Of course putting more sailors on them raises their lifecycle cost through the roof so nobody wants to do that (might be a program killer). So you end up in a death spiral where the ships aren't maintained, they get worse, they fail more, can't be repaired, fail more, get CASREPs, etc.
Or so I've heard. Could well be wrong.