Howdy, so I've got a bone stock 1981 special ii. The original rotor was shot when I bought it. I swapped in a salvage rotor off an 83 and it was in spec resistance when I got it. And less than a hundred miles later I tested it was also in spec resistance, about 5.3-5.4 ohms, it died after another 90 miles or so. Is there something in my electrical system that is eating my rotors or is it the fact that they were original rotors that were bound to go bad anytime. I'm probably going to get a rebuilt from mikesxs just to tide me over until it can be sold. Any ideas?