[ToddT]

I think your over looking a little detail, i think retrofit occurs before ship under construction completes. constructed items complete at end of turn, retrofit occurs at begining, so its possible under your test id gets reassigned to the retrofitshiped, if id's do change with retrofit. joachims sm ship has been around since before turn 66 i know his 4 ships other than the sm where designed and built afterward. There may be a ship or two of mine that predates it but not likely.