Hi Bill: Yesterday at the field I was going to move the (switch # 4 ) timing up to see if I could get just a bit faster sync ...after start up I found to now have the same problem as (post 297) ......each engine works fine but when both are on line and above sync they work for a bit then BOTH drop in RPM then I can still move the throttles on till the next failure .... I move the timing back to stock and still have the same problem .. I have a Hitec Optic 6 with a HIT23870 Supreme 7 channel Rec.

I did disconnect the LCD panel Which I still need to replace and still had the same problem.

I did try four runs trying different fixes but same problem.

Cheers