That is not the case unfortunately, a MOSFET R/R will do nothing for stator life. It's just a more efficient switching circuit, so it heats up less. That is good on bikes that regularly burn out R/Rs, but not in our case. Guess where that extra power gets dissipated instead - the stator. The type that will help is a series type regulator that I mentioned above. I explained it in another thread on stators here in the parallel universe how it does it by reducing the actual power being produced, will post it again when I have access to a computer. Btw the rating of a R/R refers to the total power it can deal with, not each of the wires.