RE: Goldberg Wild Stik
I have a wild stik 1.20 and yes it is nose heavy. I'm using the O.S. 1.60 and after tweeking in the C.G. its now flying good with about 8 oz of weight in the tail. The plane is beautifully covered but that covering peels at the corners after every flight so far (5 flights) now.
I also have the Quad ailerons glued together as one, or one per side. After 5 flights I have finally got it floating around and stable. I would not but this plane again I rather buy the Big Stik 1.20 or Ultra 1.20.