Hi all,
Thanks to everyone for the replies. They all contribute to my working out which path I should take.
The power system is : Emax 2820/07, ZTW 40amp esc, KR Timer, 4s 2200ma lipo, 11x5.5 prop. Weight on my scales (not including prop) is 11.26 ounces (so you are bang on, Dennis).
Summing up it Looks like I have two options: 1. My thanks to John Rist -Shorten the nose and mount lipo on wing alongside the canopy- it aint pretty but it will work ok for basic stunt training.
2. My thanks to Brent and Mikey - move wing forward, move undercarriage forward also? Add 4" to stab/elevator span, try the balance again.
I shall also look into the suggestions for half in /out the wing mounting.
Now I have to balance up the fact that I was looking for a simple project as the model will possibly not last long in my inexperienced hands against the extra effort that will create a better looking and flying aircraft.
Plenty for me to ponder. My thanks again to you all.