Macgyver and I may not disagree as much as it may seem. Science is not about how cranky a theory is or even if the theory is right.
The scientific approach to a theory is to set up and conduct a test that can falsify the theory. To assure it can reproduced, setup and results must be documented. The results must not be twisted to support the theory. It is legitimate to refer to tests that have already be done.
There is a reason for the free energy community to dislike engineers. Many of the devices use well known effects and do not work because of equally well known effects. Some of those effects were experienced through experiments during the studies. The engineers also learned to ask the right questions. E. g. if a certain power output is claimed, evidence beyond the dark glow of a light bulb may be asked for instead of just the nominal rating of the bulb emitting bright white light.
Due to the gyroscopic effect accelerated spinning bodies experience forces that are not present for non-spinning bodies. Spinning ball bearings also have interaction with fluids beyond air resistance. It is a complex situation. So a falling ball bearing may behave in a way you would not expect. Whether the behavior supports the theory of influence on the gravitation can only be decided with tests.