Slowing the plane down is one thing but with an 8 oz fuel tank and a Saito 72 you should not be getting a mere 8 mins, I am sure you are not flying on 100% throttle for 100% of the time for sure. Like RC Sport says, kill the smoke machine and you will definately see the plane handling a lot better. How much heavier does the plane weigh with the smoker/batt and juice?

Now to get mine outta the box ... RC Sport ... how does your plane handle with the OS52? Is it not a little under powered or just sufficient ...