Thanks guys. That sounds pretty good. I'm sure I'll find a happy medium somewhere. I'll use the math method as a starting point and go from there....

I would consider building the tail a seprate piece and screwing it onto the plane so I could change it out easy but it's going onto a small HLG, any other suggestions on attaching the tail so I could remove it fairly easy if needed? Would simply using CA to attach and the solvent to remove it work? Just make it normal, and cut it off? What do you think?

Rico