I also use the Jeti Spin Box for measuring pulse width. I have found it to be a very useful tool beyond programming the Jeti ESCs.

I would make one safety comment on Jim's description of throttle cut. On the Futaba radios, I believe the later models like the 14MZ and 12Z behave as Jim describes with throttle cut basically disabling the throttle stick preventing accidents if the throttle stick is accidently bumped. However, not all radios behave this way. Some basically use throttle cut to lower the idle and kill the engine but the throttle stick is still active. Be aware of what your radio does in throttle cut mode.

Like Jim, my Jeti ESC needs just a little bump of throttle to get the motor running if I set the idle very low.

Woodie