Guys,
I should also say that my Behotec 180 Gold was working fine for the first dozen flights without exhibiting any flame-out issues.
If the throttle trim step range proves to be the root cause, perhaps the narrow step range that I had was right on the border of shutting down the turbine with the throttle stick in the idle position; I can only speculate at this point.
And of course, time will tell if the problem has been corrected.
I plan to perform some taxi tests and then go ahead and fly the model.
I'll let you all know the results.
Joe D.