I've gone through like 5 or 6 knobs. 3 of them were Razo's. 2 of them were free, but i paid for the 3rd one, which was the RA66, which is the heaviest model, with the gun metal finish and carbon fiber inserts. Shifting feels great with that knob. i've had a couple of imitation type R knobs which are great for "feeling" the gears, and a stock leather knob from a GSR, which i think looks the best (cuz its stock)