Yawn, I'll do my "homework" if this is actually going to go anywhere. What exactly am I looking for here that's going to somehow make the observations thousands have made with the Cavendish experiment and its various updates disappear?
As for Miles Mathis, he's a double-edged sword to deal with. The world he lives in has an alternative for everything, including calculus and geometry. It's a self-contained world, and his objections might not make sense outside of it.
The last time he was brought up, I asked what objections, exactly, he brought up to the Cavendish experiment that were worthwhile and all I got was that it was done underground, and so the gravity of the walls wasn't taken into account, which is false given that the experiment starts in equilibrium with whatever the local gravity is and only measures the change to the new state of equilibrium after introducing the heavier balls.