I tried, many times in a row, to get additional strike aircraft to launch from KB for a non-historical first turn strike. I transferred LBA Kates to the carriers that had space for them. CVs can operate up to 5 air units at a time, however putting the 4th unit on there they did fly. Ever. I ran the turn (against computer, so it's re-seeding the random every time) multiple times. Not once did my previously-LBA Kates fly. Since then, I haven't messed around with putting addition units on CVs. Fighters seem to work, additional strike craft seem to not work.
The Pearl Harbor strike was "scripted" to some extent prior to the latest Beta in that the squadrons originally aboard the 6 CVs all coordinate and attack automatically. although altitude and target selection (port or airfield) is at the player discretion. Other squadrons are not part of this "script," which is why they did not participate. At least that is my impression of the Pearl attack, having experimented with it some 50 times. With the latest Beta, that "script" appears to have been removed, which is why we have begun to see some bizarre things happening on Pearl strikes in the more recent PBEMs: such as planes launching in the PM phase as well and the strike not being at full strength. The removal of that "script" has made the Pearl strike much less appealing, because now, often, all planes do not attack, owing to the air-coordination penalty for such a large CV group. What had always been an underwhelming attack is now more underwhelming. With DBB's less effective torpedos, the Pearl Harbor attack appears to be a waste of First Air Fleet in DBB.
As to putting additional bomber groups on CVs, I have experimented a little with this also to add additional ground-strike capability to KB supporting amphibious operations. The results are usually dissapointing. It seems to be rare for a CV to launch more than 2 squadrons of bombers in a single attack. Adding fighter squadrons to CVs, however, seems to work well.
< Message edited by Aurorus -- 1/8/2018 1:36:56 AM >