Soaring, absolutely. It will interfere, as will another part of the suolder armor interfere with the shoulders range. But this is a papermodel, not a Bandai PG kit.
It will have movement but it'll hardly have the full motion of the plastic kits. Being paper there have to be compromises. Otherwise this would take an eternity to both design and to build. Not to mention it'd have to be probably twice as big as it currently is for it to be more builder friendly.
Saying that I have come up with a way to get a few more precious degrees of motion out of it.
Jaffro, amazing the pants off you eh? Scary thought!!! LOL
I wouldn't say the joint is my original design, it just seemed a logical way to go. I'd seen this type of joint in other models or everyday items, I just copied it. That joint there gives 3 directions of motion in the upper arm and shoulder.