Lazer and Ack Ack, and Citabria back in the day are the 3 guys I would listen too, and ask personally if I was going to be fighting in the P38. I can attest to Ack Ack lately especially, he's almost always hunting on his own, I only see him when I'm doing the same thing and run into him in the area where the fight is, and he's always offset fighting 1, 2, 3 or more guys doing his own little thing.
Lazer has always been a house on fire in the thing too, even though he lies about flying with only a mouse - hah hah.
Fester/Cit, what more needs to be said, he's good in anything, but when this game first started, he was always in that P38, and I joined his squad to learn the thing, something I never really did, but I can attest to how good he was in it.
Sunka is good enough to figure it out on his own, I doubt he needs a whole lot of advice or hand holding, as he has super solid acm and accuracy already, it's just a matter of slight adjustments with the P38, and he already stated the "big" ones.