The reason you think it's only the rooks doing this is you don't fly rook.
Right, because my eyes are close the whole time I am flying lol (cheap shot)
Mini - this is a rook habbit. If I had a $ for every time someone said, "multiple contacts high alt."
Then someone says, "geez what are these guys doing so high, when none of us are over 8k?"
Then someone else says, "Must be Rook alt monkeys."
Then someone might say, "Could be bombers."
I would be bill gates.
Then low and behold they come into tag range and they are always Rooks, 51s, typh, 38s etc.
Now this would not be bad, but then they dive down, make a pass or two and run once they have lost the advantage. And sometimes even worse they dont even come down and fight.
As for the Bish, most of the Bish that I have run into lately will come down and fight.
As for the nights, we are so busy defending against the hords that we dont have any time to climb lolh.