[Mike80911]

I worked my way through school in a independent tire shop. We worked on many high performance cars. What was taught to me was never use a plug in a belted tire only use an inside patch and then only within the tread area never on the side wall. In emergencies people would plug the tire and come in for a proper repair we would remove the plug and patch the tire. Never had an issue with an inside patch that was installed properly. Additionally run flats should be replaced and never patched or plugged.