ORIGINAL: Mike Scholl
Why not forget the re-spawn completely and just have the ships arrive as they did historically.
I guess this comes down to player preference. I like the "respawn" rule because it seems to represent how the USA would actually react to what is happening in the Pacific. To me, because the game does not follow the historic path, having a rigid historical reinforcement schedule is a bit artificial. The reinforcements arrive as per the real life situation, but the game is not in that same situation, so there is a mismatch.
I realise that this does not apply to other things, such as air and land reinforcements (with the exception of the random arrival options), but maybe there is scope for improvement in those areas as well. For example, the ability for the Allies to accelerate, or slow down, air and land reinforcements, perhaps with VPs being adjusted as a result. Even some control over if and when Allied ships are sent to the theatre from the Atlantic (again with VP and/or PP costs).
Another factor is deciding what the player is meant to represent. Again I think different people have different ideas about that. My view is that the player represents the theater commanders. E.g. Nimitz and Macarthur for the USA. Not the national governments. For this reason the Allied player does not control Allied production, but could conceivably have some influence in what assets are allocated to their theatre, via the PP mechanism. Japan is different, in that the theater commanders do directly influence the national government, so do have some control over production. Others have different views on this as well, no doubt.