Between the recent change to the lecture hall that all EXP earned is converted into packs that can be used with no restrictions on other ships, and the upcoming changes that will cap oil cost on fleets (to an unknown amount, this may be less important if it's capping to something like 70 ), I've been considering how to level new ships and it seems like there's little sense in actually taking sub-100 ships out to sortie at any point any more.

Ships that you take at 100 will earn 122% of their EXP (144% on Sundays, even) and that extra EXP can be thrown at any other ships regardless of how terrible they actually are in a fleet. And depending on the news regarding oil costs, we may even be able to take 6 MLB full oil ships for the same cost as a smaller amount or lower LB ships.

Prior to this, I often was the type of player to try and minmax oil and only use 0LB up to 70, then uncap right before they'd ding to 70/80/90 in order to spend less oil. I know a lot of other players took it even further and would 1:1 their fleets since the MVP bonus skews it to make it most oil efficient to focus it that way.

But with the changes now (especially on Sundays if you can try to focus most of your grinding on that day), you can feel free to take your 100 fleets to 12-4 and earn a huge amount of EXP (also good for PR ships) while converting a portion into free EXP that you can use on fresh ships to 1-100 them and repeat the process.

It just feels like using sub-100 ships for any sorties any more is throwing away bonus free EXP (unless you play so much that your lecture hall is capped). Am I missing something here, because it feels like after oil cost for fleets gets capped there's essentially zero reason you'd want to do fleets sub-100 outside of specialized farming like 2-1 (if people still even do that)?