RE: ECU SETUP QUESTION
Set the End Points to +/- 100% for the throttle channel.
Put in the Binding plug and learn the failsafe for low throttle / low trim.
Remove binding plug and reset the End Points to +/- 50%.
Learn R/C.
Test failsafe by shutting off the transmitter and making sure you see the 'F' appear on the GSU top center display.
Putting the End Points to +/- 50% still gives you about 500 throttle settings for the total stick travel.