RE: New Funtana 125
I understand why some people say the Funtana is lacking in rudder authority. It take a significant amount of speed and rudder to maintain knife edge, and doing a real slow knife edge is a little disconcerting. I would assume that this is due to the slightly inadequate fuselage side area. Correcting during a hover and steering during a harrier are a non-issue, though.
If y'all remember my video I posted, the engine was screaming during knife edge, but that was because I didn't really feel comfortable going slower. It took a ton of rudder and the tucking and coupling got worse and worse along with it. Just the nature of the beast.