Found my stylus, herp dee derp (it was in the pocket of my backpack where I keep my 3DS). The new black spots have disappeared, though the old ones still exist.
Screw 9.0 Intensity, this was a drop from a 7.8 run of Chapter takeaguess. I think I may have found a new Solo weapon.
Melee: 47% of Americans, apparently
Overall defense +6
Shot range +2
Power attack +4
Haven't had too much luck with my new Babel Club online yet, but it's decent enough if I can avoid getting sniped by people like Leo and my teammates don't all decide be made of suck. The backward-dash works like Magnus's in that it kinda just sits there, so it's good for defending.