did you feel like you wanted more topend, or maybe the bottom end of the stage one would be more benificial. I looked at the dyno charts and it looks like stage 1 will show conciderable gains going up to the topend, and then remain close to stock on the topend. Then stage two did the oposite. As i said a ride all tracks, and most have many turns and are technical, however there are a couple of long staits that get me into the topend. Also, most people praise the topend of the yamis, abut fell they need more bottom end snap. As i do