Pretty gutsy attack!
I paint with a brush... so I always thought the chipping fluid was applied to specific areas; when I tried that, I couldn't remember all the spots!
By airbrushing it everywhere, that somewhat simplifies the process I guess. I imagine you can always go back in with airbrush or drybrush if you want to back out a little, or have flakes of paint still adhering inside wider chipped areas.
Thanks for walking us through your exploration!