Mine was perfect with a DL 50. You just have to keep everything as light as you can. Bought a moki 2.10 for it as well, but put it on something else. I started somewhere around 5.5" back adjusted until it was neutral. Actually one of the very few planes I've moved the CG up on.
Mine had 7955's all around. It's in the process of being rebuilt after a flameout in a low hover.
Wish I had another one as it really is a great flyer.
Mike