I think these are fair questions Gary. I mentioned my views on gravity some where else, I'm more inclined to believe what Tesla said.
Universal compression makes more sense to me than gravity.
I can theorize, but this is really outside of my knowledge base.
Could it be possible, since the ocean is a much larger body of water than a lake, that more universal compression would be exerted, since the ocean is a much bigger body, than a lake?
Maybe it's not the moon that causes the tide to move, but rather the moon blocks some of the compression (magnetism, gravity, or whatever you want to call it) from being exerted, so there you have a swing in tides?!?!
Look, I'm just brainstorming here, not saying this is fact. This is for the PHD types with massive laboratories to experiment on to figure out. Plus, does it really matter why the tides move? How does this swing the debate to either side? We all know the tides move. I surfed for many years, seen the tides go up and down. There is no question there are tides.
If this satisfies you for an answer, would like you to come up with an answer on why the sailboat goes out of sight, bottom first, in a flat earth model? Airline flights would be a huge one to over come as well with a flat earth.
We can still discuss this tide discussion, but I will just be giving you some guesses. I just accepted the tides as they are, they haven't made we wonder at all. Some things I just accept and don't bother worrying how they work. It could be possible it has to do with magnetism on how the solar system works. Edmond Halley's experiments with magnets and compasses, made him believe the earth is concave, this could possibly explain the tides also.
How would you explain it? You anything better to put fourth, than just question, what science has already put out?