Do we even know if its "allowed" to turn at all? Seems like Moffy J is a bit of a cheat. Nor do I imply that having 0 yaws literally means it can't turn.
Is the SSD actually fun and different at 400pts? Or just a very large ISD that takes forever to kill and will make for half-kill-half-point nightmares like large ships did in Xwing? And also is best supplemented with a fighter group, as you don't have enough points for activations and ships that move?