Please provide proof that your distance measurements are consistent on both a flat earth and round earth. You either invalidate distance for your own experiment or validate it for the geology proof in the Airline data thread. I'm ok with either.
Neither of these needs to happen. The Bishop Experiment is a sound disproof of the Round Earth Theory (which can, but doesn't have to, serve as evidence of the Flat Earth Theory). Effectively, it's a
reductio ad absurdum - you take Round Earth assumptions (distances, extent of curvature) for granted, combine it with observational evidence (you can clearly see something that should be obscured by the curvature, if the assumptions were true), and you arrive at an absurd conclusion. Therefore, either the assumptions or the observation was incorrect. Since Google Earth's images support the observation, we know it was the assumptions that failed.
So no, assuming RE distances for this experiment has no weigh on your qualms with how distances work on FE. That is completely off-topic for this subject.