I installed my PC3 last month or so and I noticed the buttons for the RPM settings. Its kinda obvious what they mean but I just don't really know what the best set up is for mine. I've got a 2+1- sprocket kit, BMC air filter, TwoBros slip-on. I set the PC on Mid RPM usually but I have never put it on Low because I figure the RPMs are too high when running the quarter. I know every bike is different but I just want to see what you guys have yours set on when running the quarter.