Difficulty level and enemy ship tonnage?

[Q]

According to the enemies.txt file the tonnage of all enemy ships should vary according the selected difficulty level from 80% to 140%.
At easy level the Abbidon starbase had 4x900 shield and 4x360 armor points. At expert level exactly the same!
Is this tonnage selection working? Or is the extra space of the starbase not used?

[Q]

I am pretty sure that this is not functional.
The armor points may vary because there is a random choice of armor type used, but the hull tonnage taken by armor or shields remain constant in the different difficulty levels.
The most obvious observation that the tonnage of enemy ships is not changed by the selected difficulty level is however that at easy level the total tonnage occupied in the Abbidon starbase is aroud 2100kt. There should be a maximum limit of 2000kT (80% of 2500).