Rav, about 20 flights so far with the 140's. Other than some aborted starts last year at First in Flight (which George corrected with some minor adjustments to the ECU), they have run without issue.

The takeoff flameout happened years ago when I still had my old propane start P-120's installed, dialed down to 24lbs thrust. One shutdown at liftoff due to a "watchdog" fault, which is a static discharge condition. A little rudder correction and it flew just fine. There was this one other time with the 120's when I took off with both running but one stayed at idle due to operator error. I had failed to confirm both were responding to the throttle after manual starts. Again, the hog flew just fine but it's a mistake I vowed not to make again.