Did that to make sure it's not broken... lol. Though I may add a bit of range to it.
Yes a bit of range would be good, if only to make the play get more smooth, since, well, she uses her gunns and you'd expect them to have a little range
She is pretty lightweight, so I don't really see a bit of range for her a problem.
If it is, you could scale the damage to make up for the range, though that wouldn't need to be much.
How's the final smash looking? I am so looking forward to see it