I'm curious if running the dpr9ea-9 (NGK) in the L would be better on slow trails on very hot days? Kind of a cunundrum I imagine. I'm planning on dicing the front fender, can't afford an oil cooler at the moment. Were planning a 700 mile trip and after seeing this spark plug recomendation I started to think too much. So does the low idling counter the plugs affectiveness for high temps?