[Xrati]

AT, your Escorts and Explorer movement didn't work. My speed went from 14 (13 normal +1 for propulsion experts) to speed 6 on the escorts and speed 7 on the explorer and Hvy. Escorts. I don't beleive that you'll be able to get the extra movement with the "Movement Generation" line. So what I tried is this:

Ability 3 Type := Standard Ship Movement
Ability 3 Descr := Smaller size allows for greater speed.
Ability 3 Val 1 := 2
Ability 3 Val 2 := 0

Now with this the Hvy Esc. went from 14 to 15 movement, It has an inherent movement of one with no engines on it. I don't know if this is the way you want to go in creating an extra movement for the ships, but it does work. If you changed the value in the line:
Ability 3 Val 1 := 2
to :=3 you would get 2 extra movement out of it but the base speed without engines would be 2. I only tried this with the heavy escort as I know it will work for the others as well. Again, it's up to you if you want ships having inherent movement without engines. I don't know why the movement was halved, by the other statement calling for "Generated Movement."