Finally maidened the drenny and flew all weekend. I love this plane, it really is very smooth and true, harriers are solid with only a touch of wing rock when the juice is applied and stearing on rudder. It just drops vertically with full up elevator very steadily. I found that it wouldn't WALL too good, and on last flight today realised that the cg was further forward than 150mm. This may account for the slight wing rock and entry into the wall so I will have to wait until next flight to see if it improves after I move the cg back. Blenders and flat spins were all easy and it hovers very easy. The ys 110 is ample power to punch out of a hang, I couldn't imagine wanting more power. This really is a good plane!!
I'll post again when I have nailed a good cg position.