Coo, I ran the 15/6 since late 2002 and just found that it was at the top of the throttle rang in a hover. With the 15/4 it is now just below 3/4 throttle leaving that last quarter for pull put.

Steve, on the maiden of this one I thought that I would leave it off untill I got the thrust issue dialed in and any carb adjustments. What I found was that It had a very nose high attitude and when inverted it was if it was severly nose heavy. It stopped with the cowl on. I felt that the ramp under the front of the fuse responded as an air foil pushing on the nose from below. Joe