Shaka is runnung sliders, and everyone that I have seen use them likes them. Just figure weather you want more or less rpm's at a given speed, and order your sliders accordingly. If you need more power at bottom end go a few grams lighter than stock, or if you want less rpm's at your cruise speed go a few heavier. It may take 2-3 attempts to tune it where you want it. Thank goodness rollers are relatively cheap.