I just had a look into Castle Link and clicked on the ? Mark near Vehicle Type as well as Throttle Type.
Vehicle Type Helicopter and Fixed Endpoints or Governor Mode are using fix End Point values, no Calibration possible or required.
Range values are pending if you enabled Autorotation in ESC or not:
Attachment:
CastleLink-Help.PNG [ 81.06 KiB | Viewed 1223 times ]
Endpoints with Auto-Rotate disabled: <1.2ms Arm/Motor Off, >1.9ms Full Throttle.
Endpoints with Auto-Rotate enabled: < 1.06ms Motor Off/Arm/Reset slow spool-up, 1.06-1.2ms Motor Off, > 1.9ms Full Throttle
Just to clarify: 1.2ms (Milliseconds) equals 1200us (Microseconds)
Translating to Spirit Setup, if ESC connected to Spirit, with an extra +/- 40us cap, enter the following into Spirit for min max range:
If Autorotation in ESC enabled: min: 1020 / max: 1940
with no Autorotation in ESC enabled: min 1160 / max 1940
Looking at this, you might got Auro in CC Edge enabled and did not reach below 1060us.
Keep also in mind, reducing value in TX does not send lower values to ESC if connected via Spirit, as min range means min range, a hard limit, even diagnostics shows -10% it will not go lower than min range, in case of Spirit Gov enabled, this is to avoid binding let Gov know defined mechanical limits.
regards, Adrian