A slightly finer point of throttle adjustments that some might want to consider as well. I've seen several references to having the servo arm perpendicular (90 degrees) with the throttle stick at the midpoint. This setup, while functional, guarantees a non-linear throttle response in flight, with nearly all the change in engine RPM in the first half of the throttle movement. Unfortunately, our carbs do not respond linearly. This can be adjusted by setting your throttle throws and adjustments such that when the throttle is closed, the throttle servo arm is about 10-15 degrees from being parallel with the control rod, and at 90 degrees with the throttle at full open. This geometry reduces the amount of actual throttle movement during the first part of the stick, while increasing movement near full throttle, and you'll see a much more linear response.

Brad