Hi
You will need to change all specs Re : inner out wing chord , control surfaces.
Just take all the measurements off your plane and add it in to Phoenix "extra" edit part .
Phoenix will not scale it all down for you

I will be doing same thing when I get my new Pilot RC 88" Extra ...(30%).

I have done a new scheme for it .
look here
[link]http://www.rcgroups.com/forums/showthread.php?t=1045667&page=26[/link]





Greg