Flying wing launcher - Add-on for GASB One

Maybe someone had note that in the video of GASB One ( https://youtu.be/qRAx6DWyv4M ) during the take off we don't launch the flying wing as is usual for this kind of model, but we use an add-on glued under the body of the flying wing. This is for two reason: first of all because in our air field, we are very few to use the flying wing and we don't have familiarity with the launch, second, since the wings tickness is very thin, to avoid to damage them we prefere this method.