1 front 1 rear = speed 3 drive by nebs when the time comes.
Think about it, you slow roll for as long as you can then nav token to get out of the front arc of the ISD. You then can show your rear and hit him with 3 dice comfortably whilst you repair...or whatever.
Now Imagine a wolf pack of nebs with GR75's with the activation advantage or slicer tools.
I know people wanna focus on what does 1 card do to 1 ship, I'm starting to look at combinations now.