The new type ignition will not provide any better noise prevention than a properly installed odler style. Some may have noticed that CH came out with the shielded plug wire, the same as this newer unit, quite some time back, still using the standard sized spark plugs. However, the new ignition does provide a means for the user to run a smaller CM-6 plug, which is often a bit more difficult for some to obtain. Makes for an easier "in cowl" installation with the shorter plug. Those that have the older CH ignitions can do the same thing by contacting CH to obtain the plug adapter and sending in their old ignition for a plug wire/cap conversion. You probably won't need the external shielding with the CH conversion, though.

I have to admit the the housing for the Hall sensor and the rotated carb body looks pretty good. Other than that, it appears to be the same engine it was before.