One of the most common places I see this happen is with Japanese bomber pilots.
This is because both the G3/G4 pilots, and the B5N pilots have similar skill sets - generally high NavT, highish NavB, and then possibly ASW or GrdB, so its sometimes hard to tell which is from which group.
When you pull one from the other 'group', say a pilot trained on a G3 (considered a Medium Bomber) into a B5 (considered a Torpedo Bomber), you will get a drop off (in my experience) 2-5 experience.
I think the game tracks it by aircraft class, so in the above MB and TB are seperate. I'm not sure if it tracks MB as just being part of 'level bombers', or if it splits it into LB/MB/HB too - I haven't tried pulling pilots trained on light bombers like Ki-51s into Ki-21s. Will give that a shot to check when I next shuffle pilots.
Another easy one that might cause this for the Japanese is Fighter and Float-Fighter pilots, since I think those both pool under the Fighter tab in the reserves.
Interesting. Maybe this is because you manually selected the pilot rather than drawing from the top/bottom of the pool. For some reason the way you select the pilot has an effect on how it transfers. The fact that one pilot went from delay 1 to delay 6 suggests that. That being said, I plan on avoiding the manual pilot select so it won't be an issue. Otherwise I think it's near impossible to track this because there isn't any info about what groups a pilot used to be in.
Nope, it has nothing to do with manual select or top/bottom move buttons. This is easy enough to test with a limited sample size, and is also apparent for example with DB pilots, which also share that same 'Bomber' pool, but have very distinct skills (no NavT), and hence are easy to tell apart, meaning they don't suffer experience loss when you move them into their 'correct' group.
Im fairly certain that it works by tracking the aircraft type (MB, TB, DB, etc.) of the squadron the pilot came from when he was moved to the pool, compared to the aircraft type of the squadron he gets pulled into. If the two don't match, you get the penalty.
You're right its near impossible to track, though you can reduce incidents of it by using the squadron reserve instead of the general one as a 'holding zone', and also by making sure to differentiate pilot skills in similar categories (for example if all my G3 pilots had notably higher NavS skill, they would be easy to tell apart).
< Message edited by JuanG -- 5/5/2015 1:37:00 AM >