I use the hot wire and just set the timing profile to C1 (custom 1) and the ESC is now in "blinky" mode ignoring any timing or boost settings. Like mentioned above the ESC will now (at neutral throttle) flash (blink) 2 or 3 center LEDs indicating it is in spec (blinky) mode. The number of center Flashing LEDs Depends on the firmware version of your ESC.
Tamiya 417v7 Sedan, ___ Tamiya 417v7 USGT, ___ CEFEX EVO w/ 417 suspension VTA
Exotex TA06 Pro CS Drifting, ___ Tamiya 417v5 (sold)
AE SC10 4x4
AE SC10 AE B4.11