I have hard time believing that the wire drive is still not better using bushings than a standard cable drive with bushings . First of all both are using bushings . Second the spine in the cable that snaps every revolution has to be using extra energy to rotate past the spine . Also if you take a cable in your hands and put a slight bend in it and rotate it you will feel it snap . At speed running 20,000+ rpms I have a hard time believing that is not taking a toll on the bearings in the engine with that constant vibration going through it and reducing rpm's du to lost energy . .I’m still gathering info but so far I can say that the wire works best will ball bearing struts. I see little or no advantage using a wire drive with a bushing strut so far.