Is this right? I am now using a tac meter to help set my engines. One of the engines is the O.S.46LA. The specs. say the range of rpms are from 2000 - 16000. So I have set this engine at 11000 rpm by the tac. I should say that I am not looking to get the max speed/power from any of my engines, but I am trying to get my engines to fly for many years. So I am thinking that I am running on the rich side since I am below the max rpms. Does this setting sound right for my purpose which is a good running engine that will run for a long time. It is running real good and does leave a "smoke" trail you can see.