Tiger Shark Engine's (ANYONE HAVE ONE )?
I got a NIB .75 here on RCU. I broke it in on 32 oz of 10% and OS #8. Changed the plug after break in, and had NO problems. Idled great, transitioned great, turning a 13X6. I was pleasantly surprised with the overall performance of the engine. Too bad I didn't raise my antenna on that last flight, though.....