I had to replace the Cline unit,engine has been sagging in a hover,only time it does this. I 'm not even aware of it until I try to throttle up,when I move the stick from half to full-nothing happens,it even drops r's a little-not good,I have to hit elevator to get out of the hover. I've tried adjusting the low end many times,if I get it richer,then flame outs during transition,the hovers are then OK. Cant seem to find the perfect setting.(Another reason to go gas?) A big weekend is coming up,camping,flying,eating,drinking,more flying,I want my Do ready for my first hovering tail touch,its supposed to be windy, so I have an excuse ready!