Got a Brison 3.2 w/electronic advance and just tuned it yesterday. Used the advice from [link=http://www.rcuniverse.com/forum/m_3019271/tm.htm] HERE[/link]. Worked out perfectly. Was a bit tricky though. Did it with the motor running. With someone holding the plane, I straddled it behind the motor while taching it and making adjustments. You HAVE to be very careful though as the carb is only like 2 inches behind the prop. To make adjustments a bit easier I cut 2 pieces of fuel line and put them on the low and high needles to make turning them possible. Without it it was next to impossible to get a grip on the needles because of the vibration. Besides, I didn't want to worry more about trying to dial in the mixture than where my fingers were. The tubing made it possible. But depending on the size of your hands and fingers, this may not be a feasable way to go about it. I have fairly small hands and fingers so it worked for me while still being able to stay safely away from the prop. If you do it this way...with this motor....JUST BE CAREFULL! With that being said....throttle through the entire RPM range is spot on, with no 4 stroking anywhere......and throttle response is instant. The true test is how it will actually run while airborn. One thing that I did do to try to alleviate differences between running on the ground and while in flight, was to remove the carb diaphram cover and solder a piece of brass tube to it and ran a piece of fuel line from it into the fuse to minimize running changes due to differences in air pressure. We'll see


Cap