Keep Max Speed but scale Max Speed to Max Acceleration. That way you can reason that ship captains would be stupid to accelerate to a speed so high that they can't reduce it via deceleration to zero again (turning and pushing to the limit). If a captain did this, the ship would be unable to maneuver effectively. You can see the logic behind this working brilliantly in the TV-series Battlestar Galactica.
Effectively, using Newtonian Physics:
Acceleration proportional to Max Speed.
Acceleration proportional to Maneuverability (the ability to change flight direction by accelerating at an angle to the original flight path) [though it should be reduced by a variable number in respect to the ship size and maneuver thrusters to account for the time the ship needs to physically point the main engines into the right direction)
Keep Max Speed.
I salute you to the best Star Wars Mod i have ever laid my eyes on.
Axed Head and A.I. Coder for S.E.E. and ... stuff
".. coding is basically boring. What's fun is finding out how things work, take them apart and then put them together in ways that were not intended nor even conceived."