hey, Smart or not, I just took what the guy in the shop gave me, my spada is supposed to have a NGK CR8EH-9, but I walked away and installed two shiny new NGK CR9EH-9. They're supposed to be a cooler plug, what's the implications of this? Fouling? The bike's running fine, I dont know precisely whether it's better or worse as the smoother way it's running right now might be more the oil change I did at the same time. It seems better at high speed but more sluggish off the lights.