design pb : boarding ships and multiple fighters

[trooper]

Yeah, the design works.

But my AI doesn't seem to like boarding ships...
It's a height for a pirate race !

I put entries like this in the vehicleconstruction.txt file in every AI state :

Entry 49 Type := Boarding Ship
Entry 49 Planet Per Item := 30
Entry 49 Must Have At Least := 3

But the AI prefers building attack ships, carriers, mine and satellite layers...

Any idea ?