This discussion isn't a math problem. "Science" doesn't solve the problem. Scripture + Science + Faith = solution.
You're trying to figure this out just using science. Won't work.
But math is the basic of science. The model of earth that you describe has no math. Please provide some math that works. That is all I am asking for.
So your description of earth is Scripture + Faith = Flat Earth.
All of the videos that I have seen that say it proves the flatness of earth, do not use any math, they just use circuмstantial or anecdotal evidence.
The videos seem to be designed to mislead people, I do admit they do a convincing job, but we need to move on from theory and actually get to some mathematical proofs.
The only thing I have not been able to figure out is line of site videos, but I question those because they are hard to recreate and I have not seen any videos with people doing the same line of site test and getting the same results, which means the line of site test is not a reliable science experiment.
If the line of site science is true, then you should be able to recreate the test over and over again.