Sorry for the late reply i have been out of the country. I still am trying to figure this all out. My radio is a Jr 7202 and it has 3 different flight modes. I wanted to make the third mode / switch position my "idle up/stunt" mode. To do this i set my throttle curve so that at both the low and high points i have roughly 100% throttle. The pitch curve, as i understand it from your post above, should be similar to the throttle curve. So at my low and high points i want a high %? Since i can't figure out a way to make the pitch curve neagtive on the radio, how does the radio know to send the servos in the opposite direction to give neagtive pitch on the heli. It seems that when i setup it this way the heli ascends with the stick in both the high and low position.

I'm just trying to learn the radio as i pratcie over the winter with my Reflex XTR sim, and getting the helis to fly inverted in the program has not come naturally and i still believe the problem is in the setup of my radio.