You don't need to do every single bone/node. Just use the parent bones.
Well yes, of course, it's just that some nodes inherently mess themselves up when I modify a main bone like the arm. Not sure why... it's just part of the whole mess...
Strangely enough though, I have no idea what I did, but I did something that made the left arm stop messing up the 11 or so bones that it caused to mess up, I have no idea what I did, so I unfortunately can't reproduce the result, but that's okay, because the right arm only seems to mess with the bone RHook100, which I closely solved last night