Bad luck dean,
Ive got two slots both days for Wings and Wheels!
Will be flying something similar to yours- an Innovation pro.
For the funtana, I expect what we will do is do a mock up of it when its uncovered with the servos and engine on, so that we can juggle the position of the servos, batteries e.t.c to get the perfect C of G without adding any weight.
I hope Stefan Wurm is going to fly his 500cc 4.56 metre wingspan Pitts Special!

I wonder how big his car (oops i mean lorry!) is?
You can see pics at the bottom of the page on
http://www.rcflug.com/weiersh.htm#ultimate
Luke