ORIGINAL: SeamusG
DE - just noticed that it "appears" that the hinge line between the fin & rudder in not vertical. What is the advantage?
I'm not sure what you mean. My rudder hinge line is at 90 degrees to the thrust line. However, I did scoot the entire elevator/stab forward a bit for CG (too much trouble, wouldn't do it again), as you can see the hinge line for the rudder is forward of the elevator.
Try a 14X4 APC on that 46 AX (great combo on my 46 FX). You might get her to hover with that prop.