Yes I am running 30% as I was with the OS61WC previously. Is it a problem with the 91 to use 30%? I can certainly go to 15% as its definately more cost effective, but, am I also to expect losing power with 15% or do they run just as well or even better with the 15%?

I only ask because I need the engine to lift a 7lb payload and fly aerobatics, and the 61 was bogging down doing so hence the changeover to the 91.

Let me know your thoughts, and thanks!

-=>Raja.