[Suicide Junkie]

The current / planned Kwok-Coil system does have its own advantages.

For one, damage to the engines will slowly reduce your speed, until they get down to a critical point, whereupon they go offline.
At higher tech, you still get a decent speed while the engines are starting to break up.

Q:
Where is the engine supply use modded in?
It would be nice if the engines used just as many supplies per movement no matter how many coils you have.
(Since we can't have it decrease with more coils)

If you set all ships to require 2 engines per move, and then set all engines to give 2 standard movement points, you could give the WarpCore 1 standard movement point, and a large supply usage.
That way, the core would not provide any speed without having intact engines, and the power used to travel would not decrease as you take damage to the engines!