Well, regardless of accuracy, you will want to make sure they are capable of DECELERATING at a relatively decent speed for the sake of the FS2 engine.
Capital ships coming out of warps in FS2 tend to do so well above their normal max speeds. In some mods, this becomes really noticable due to some larger custom ships having extremely slow acceleration and deceleration speeds. Which can result in a large just-out-of-warp ship zooming along at fighter-afterburner speeds, and not slowing down to its normal max speed for a good minute or so. I am assuming of course that whatever visual changes are being for Star Wars hyperspace to be in FS2's engine doesn't change this core mechanic of course.
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