Hi Jeff,
Have you ever read ' the incomplete pyramid' - stephen brabin ? - the maths in it, is too technical ( for me). - but fortunately the guy lived on my beach resort for a year, so could explain it to a idiot (me).
Basicallly - the geometry of the pyramids IS a model of the earth - to the nearest cm scale. My point being, it might help you come to some conclusion vis a vis globe/flat earth. - it's a tough read ! - you can only get in touch with him, if you can solve a mathematical equation on his website - if you cant do it, you can't talk to him ! lol
Anyway, might be worth a read to help in your quest to find the truth!! - good luck, mate