Can't give you the details yet- I ordered it from Tower, should be here by Friday.
The cradle was made by a guy at my field for his Sig Kadet. Made from ply and balsa attached to the plane by double sided tape and one screw on each wing half. Very simple- I'll have to build one. 0deg incidence. Took up 2 meter ships effortlesly.
From what I know- no spoilers. But who knows....extra servo sitting around during some boring weekend....