I am not sure that the AI Wave manager works correct. I would expect that difficulty 1 would be sent to a small ship and difficulty 10 to a large ship.
If I attack a stationand use a ship with 32k mass, the wave with difficulty 8 spawns. Then I change to a smaller ship and get the same difficulty spawned for a ship with 3k mass.
Is this a bug or just a missunderstandig of the function? I found no documentation.