ORIGINAL: cumn thru
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.
Joe. Are you sure your engine is properly tuned? I have the same setup as you and my UCD will hover 1 or 2 clicks above half throttle. Upon jamming it to full throttle my UCD pulls out quite nicely.