The MTC 2 will give you the better odds of not smoking all your clutch plates. It is wheel driven, so that when your clutch is slipping, it is only slipping at a rate comenserate to the speed of your wheel. The MTC 1 will be slipping at whatever your engine RPM is at because it is engine driven. It is not a guarantee that you will not burn up clutches, but it does afford you the opportunity to catch a problem (if you can feel it) before everything is toast.