Thanks for the help guys....although I'm still a little unsure.

I've basically scalled down the wing planform from the design in my avatar.
At its 1900mm span the sections are 7.1% root and 8.9% tip.

As the model is now scaled down to about 1550 mm span and its purpose is more freestyle than pattern....would sections of say 9% root and 11.5% tip be more suitable?

The leading edge shape idea makes sense, I will encorporate that into the finished prototype.