Mostly the array of how the controls are setup and some functions I was going to add that didn't actually get added were the source of complication - the context (didn't define it very well, here it is) would be the perspective of the pilot in the cockpit - a lot of buttons, slower setup, various safeguards developed by a security-paranoid company that makes anyone not trained in its usage have a rather bad time just picking it up and going.

Think of the balls as small drones, with a tiny computer and a few things at the center giving it its capabilities and a small array of boosters similar to the jet pack in the back, otherwise encased in the same stuff the shield is made out of. That's the only component that is wireless.

I'll update the reactors given the standard suits regular needs :p

I'll probably add a char at some point, autopilot is rather dumb. But there could always be an update to make the difference...