Mike McCulloch has come up with a way to test his MiHsC theory, which he has applied to the EM Drive. I have some skepticism about the EM Drive based on some negative reports that I have read, but more testing is needed. Anyway, at least McCulloch has developed an idea for an experiment that would falsify his theory and would be an amazingly simple drive system for spacecraft if it works. He proposes using a simple loop of fiber optic cable with a metal barrier on one side to dampen Unruh waves.
http://physicsfromtheedge.blogspot.com/2016/07/lemdrive.html Jack