RE: Throttle Curve
Tell you what I do with my 9C.
I know what idle is 1500rpm and WOT 6100 rpm.
I take the difference and get 4600 rpm.
I know that my mid point should be 4600/2+1500 or 3800rpm (position 3)
I do this same kind of calculation for position 2 and 4.
When you fly it will be linear. (real close to it)