It also depends on the weight of the MS. The hydra and griepe are easily 3x heavier than Wing. That is a big reason that they need all those thrusters. And if the thrusters are all vernier, how do they produce more thrust than other vernier engines. And do you think Heero would be able to use the PX system? Just wondering. And how would there be no room for its Buster rifles? He carries them in his hands when they are in use. When he doesn't use them, you can't see them. I have always wondered where he keeps them.