So, about those plane attacks

[Rhodes]

Those terrible nerve breaking situations. I have been notice something that want to ask if some one notice the same.

I currently have 2 campaigns, one with a Type VII and other with a Type IX. The first is now at November of 42 and the latter in August of the same year.
I started a new patrol in the type IX and in transit to the patrol area, NW of Cape Fisterra, I got radar warnings (already have the Biscay cross) and so planes.
Had several moments of crash diving, going submerge and after going to surface to recharge, only manage to stay at for a few time, then the planes would arrive, etc.
In other patrols of this boat, from spring 42, I began to see more planes and being attack by them, normal situation.
Now, the other side. In the campaign with the type VII, in the same months and so on, I never experienced the rising of the air patrols and subsequent attacks. My last patrol in Nov of 42, at the north Atlantic, never saw any enemy plane. Granted that the weather plays a important role, but even with heavy clouds/no rain/moderate visibility, I got attack by planes when playing with the type IX, but not with the Type VII.

Any one ever experienced this? I find that in, in terms of realism when playing with one type, the game acts more historic realistic and when playing with the Type VII, were are the planes, I ask in a more immersing kind of way.
Of course, I know that several things can influence the game behavior.
I play GWX+SH3 Commander+several mods (with H.Sie and Stiebler).