[Captain Kwok]

SJ:

What I was referring to was avoiding having comps that provide the same kind of movement - this would give trouble for the AI at choosing the intended components.

Now though it should be easy:

AI should only has "Nascelle Engine" for standard movement.
Have condition for 10kT for ability "Supply Storage" for Warp Core.
Have condition for 10kT for ability "Combat Movement" for Impulse Eninge.

However...I choose to make "Nascelle Engines" at 10kT with a standard movement of 1 with varying bonuses depending on the tech level. That means a ship with 5 will move 6 at the beginning of the game and 10 at the max tech. Remember larger ships will require more engines to move. Now if we were to make them bigger (say 20kt) and give them a standard movement of 2 but then it will decrease flexibility in speed - you would either have commit 40kT or 60kT and with the 10kT of warp core that is 70kT. With smaller engines you can set up a wider range of ship speeds and that is why I choose to make 10kT comps.