Ok guys...for Futaba 8 and 9C using updated old ECUs.....here's how to retain the 3-position switch for the ECU switch channel. No need to go to a slider or rotary to get those three beeps, nor change that familiar emergency shut-down switch position. This works, both Bruce and I confirmed it this weekend, your number settings may vary ......

1. Set your ECU switch channel ATVs for about max. I use channel 6, which default is the 'G' switch, upper left, on the 9C. My ATVs are plus 129 (when switch is down) and plus 102 when up. (Center position has no ATV set...it is centered between the ATV extremes). You can insert a servo and 'see' it happen if you want.

2. Go now to your P-mix menu, pick one not already used. Set P-mix >ON, MAS >OFFSET, SLV >FLP (flap is default for CH6), LINK >OFF, SW >G, POSI >NULL, RATE > -39 gets the three beeps (it's 39% of the way up from low...again you may vary).

3. Now go to your FS menu, scroll to CH6 and put the 'G' switch in the center position, select FS (not NORM), then enable FS (push/hold the selector wheel/button for the 9C, hold the plus and minus keys down simultaneously on the 8). You'll see the percentage change to be around 47 (for mine, anyway).

To demonstrate this, turn on your ECU (hooked up to your engine), you'll find 'G' switch up is the run position (high beep, EDT switch icon up); the bottom/down 'G' position is low beep, EDT switch down. Go to mid 'G' and you'll hear the series of low beeps...and the EDT switch icon will go/stay down. Back in run position, shut the Tx off, you'll hear low beeps and see EDT switch icon go low after the Tx-off delay, proving FS function. Acid test: Turn the Tx off w/ the engine actually running (at any throttle setting). It will go to idle after the Tx hold delay, and stay at idle an additional ECU delay of a second, then shut-down. If yer real quick(!)....shut the Tx off, then right back on....the engine will go to idle momentarily, but return to the throttle setting w/ reacquisition of signal.

Ray