With the limited experience I had in my old 18 tunnel (the one Russo is restoring) it seemed to run fairly flat. It didn't carry the nose anywhere near what a gullwing does. I think set up is extremely important on these hulls not only for performance but to keep you from getting wet. If I were you I would seek out a few board members that have these boats and get a good baseline to go from. I don't remember what we had in our deal back then but it might even be worth giving Scotten a call. Just my .02 RD