Agreed there's no need to set +100% / -125% for max positive/negative on throttle channel. As a matter of fact I often set them to +/-80% which allows me to avoid the need to repeat "Teach R/C" when moving a plane from say Spektrum to Jeti as a max pos/neg of +/-80% closely replicates the servo pulse width range from Spectrum/JR, etc.

Not sure what you mean by cannot induce cooling if cut/idle are on the same switch as I do this all the time. I simply move the switch to "cut" and the turbine stops and automatically goes into cool down mode for all my turbines.. What am I' missing ?