At first glance this sounds for all the world like another perpetual motion machine. It deserves a second glance.
We (Physicists) know for absolute fact that a phenomenon called "dragging the metric" exists. The results are small, but every attempt at verification shows that the effect exists, and that general relativity predicts the magnitude of the effects. It is conceivable (though absolutely unverified) that a device might create it's own drag on the metric, and thus provide "impossible" thrust.
History is replete with experiments that show impossible results (two slit electron experiments, superconductivity) that have turned out to be true. Any experiment that provides verifiable evidence that contradicts theory shows that the theory is wrong, period. (Feynman Lectures)
The ostensible effect is small, and right up against the boundaries of bad science, but it needs to be verified, again and again, until the numbers either show that it doesn't exist, or show that it does. And if it doesn't exist, it's important to know -why- the results seemed to show it. This one is a long shot, but hey, -somebody- wins the lottery. Stick with it.