What RPM are do you guys have your idle set at? Mine wants to die if I have it at about 1700 or so and suddenly drop the throttle to idle from 4000+ RPM. I may have some more tuning to do but right now the idle mixture is set to where there is just a slight hint of a hesitation if I suddenly crack the throttle open from idle. Setting the high speed is a bit more challenging than a glow engine. I'm using a tach and checking engine temp to see where I'm at with that. This engine only has about 20oz through it so far so I know it will get better. I'm flying it in an Edge this Friday.