RE: Only one needle on OS .25?
Maybe you should have asked some questions BEFORE you bought the engine, xray238.
From what I understand, dogfighting is done at 1/2-to-full throttle, so the idle really isn't that important.
What's gonna hurt you is you won't have the power of your opponents who have stronger engines, like the OS .25FX, .32FX, the ST .34, and the Webra .32.
Dr.1