Board Thread:Fleet's Prepared-ness/@comment-31452970-20170927144623/@comment-31782970-20170929083302

I advise you to max out some T21 planes so that when you turn them into skilled T21s (heck, even skilled T52s!)  and come across the Iwamoto and Iwai quests, their upgrades will be carried over. Also, when you get your Iwai plane, don't turn it into a fighter-bomber.

Try to get more Ryuusei Kai if you do have the resources.