vallon, I'm going to get a few here that are going to flame me for this but: Do away with the 30%. I'm glad your using Wildcat, there isnt much better out there. Use Wildcat Premium Extra 15% nitro with 18% oil thats the 80/20 syth/castor blend. i have a Thunder Tiger 36 in my Caliber that over the last 4 yrs has been in 3 helis and drank more than 10 gallons of the Wildcat fuel and still runs like new. This is the only fuel i have ran all my engines on.All the Heli, car, boat and airplane motors, 2 and 4 stroke, I own have all used this fuel only since 93" and over the years only one traxxas TRX .12 car motor has had to be rebuilt and that was after 2 gals went thru it, thats a lot'a miles on a .12 I bet your now finding out that there is a lot to tuning and maintaining a gas helicopter and its engine and while a lot of people are using what you and have good results, many factors determine how well it works for them. Head shims added to the motor, elevation of where they fly, do they use a tuned pipe or a muffler and plug choice and some others im sure to have forgotten all factor in. Just stick with a milder nitro 18% oil fuel and you'll have a much easier time of tuning your engine while your also learning at the same time how to operate one. Slow and steady will win the race my friend. Mike