Sam, Throttle curves for nitros are not good linear and where you have them for ID1 and 2 ... Sorry if I missed a post about this.
are you using a governor? (which is more than recommended for your engine and size helicopter).. I would say Dont go up in the air without.
But if you must choose the not to, it's not something that'll hurt the engine, if throttle curves are set right.. People flew for years without governors and did just fine.. Just that it takes a bit more diligence to setup you throttle curves just right.
Ok so if you do want to have governor disabled : the throttle curves should be like this:
Normal: 0-40-60-80-100
ID1: 90-65-50-65-90 (make the curve V shaped with max at 90 and mid point at 50)
ID2: 100-75-50-75-100 (make the curve V shaped with max at 100 and mid point at 50)
If you use the Ikon governor, (connect your magnetic sensor to the Ikon governor port) and then set your throttle curves to
Normal : 30 30 30 30 30 30
ID1: 60 60 60 60 60 60
ID2 : 100 100 100 100 100 100
Now these values are not what the transmitter says as 30 percent .. its when the slider on the software (governor page) says 30 or 60 or whatever.
once on governor, the throttle curve does not matter . Sensor divisor: 1 ("sensor detected" in software should show ON on only one magnet. If it shows on both , then divisor is 2)
D/R Expo : While Lee says to depend totally on Ikon's own pre programmed ones.. I use them but in addition to D/R and EXPO on my TX. D/R is always 100... Expo : depending on your sensitivity to the transmitter and how sensitive you like the bird.. I would not go over 25percent (which is a big value) .. Start at may be 10 and then go up or down..
I run 5 percent more expo on rudder than I run on aileron and elevator.. Aileron expo = elevator expo..
UPdate:
if you are using Beginner setup .. your bird is gonna be very very mild anywaz.. so may be start off without expo and add to taste