Yes, but what I am talking about is making ships follow a preset mass equation based on powerplant and armor, basing the size of the ship on that plus cargo/nano's so the size makes sense, then using those to determine mass that is plugged into the ships handling characteristics.
That way all the ships are basically equal, some have different strengths and weaknesses but they make sense and are reasonable tradeoffs, so you don't have some ships with huge advantages (BHGS, BD bomber, etc...) and some that just suck (and this would be a long list).
If you have a huge powerplant, the size of the ship is increased (to hold the larger plant and fuel) and the handling is worse (because of the extra mass) but you get more gun time.