SJSquirrel, I'm glad to see you taking a shot at the SR2 model. I built your first one and it was excellent. F131's rendition looks great. I think the front engine tips do move to steer the ship with mass effect fields. The rear engine bits move as well. Below is a screen I hope helps. I'm really looking forward to this one. I may attempt to build it to scale with your SR1 model...though it is supposed to be close to twice the size in the game... Speaking of the game, both ME1 and 2 are available on the PC (as long as you have a video card from the last couple of years) and are well worth playing. Good luck.