RE: Changing covering
Ahh, I was thinking ULTRASPORT, not Ultra Stick. The old UltraSport .40 ARF is a good flying plane, but covered with that nasty, cheap shelf paper tye covering. That covering is printed, not applied in layers.
You're still going to have a tough time getting that yellow and blue off the H9 Ultra Stick .40. You'll probably have to remove almost all of it.