I previously mentioned something about Grace jumping in the splash page at the start of this arc and how it was evidence of me planning ahead more than I thought I did. Well, this is it. I had already clearly planned to change how Grace's weight works and foreshadowed her experimenting with her increased lightness.
Either that, or I just randomly decided Grace jumping around while looking down would be neato. I'd like to give past me some credit and believe he was foreshadowing this.
It was never a good idea to give Grace a constant weight across all her forms, and it's the sort of thing where there's an in-story explanation for it (how her weight worked changed after exposure to the TF gun), it's the sort of thing I just don't refer to later on as being a thing. It's technically canon, but it's the sort of canon we don't talk about. EVER O_O
Well, maybe sometimes, but not if I can help it.
Commentary added October 14, 2014