Looks like snake oil to me. Unreal. As though the engineers don't know what is necessary to ensure proper voltage for the system to function properly and to design the system to work within what is available or to compensate if needed. This is really outragous.
Snake oil products always have what seems like compelling proof. This is one more case of if it seems to good to be true, it usually is too good to be true.
Snake oil products really are very good at what they are designed to do. What you must understand is that what they are designed to do is seperate you from your money.
