I'm new to this whole "high performance" thing, driving beaters most of my life. So I'm wondering who has the best most dick-curlingly potent gasoline for my baby? It's for the CBR600RR but I figured it would get more feedback here than bike talk. I used Esso in the cars, mostly due to Speedpass, but it makes the bike run like shit. My friend claims Shell has the best and it seems to do the job, any other opinions??