RAL INN said..
May not be safe to assume that only front wing will change. As both wings lift, changing one will effect balance.
I am intrigued by the canard capabilities: 1) easier turning, 2) less wipeouts when front wing breaches. I haven't yet ridden a spitfire, I am hoping to demo one this summer. In the meantime, I've seen one and my plan is to turn my fuselage around and carve a couple wings with similar profile out of g10 ... I'd call them a copy, but they will no doubt be such a botched franken-job that it would be disrespect to say so!

I am going to carve the wings 20% larger, to see if that helps with the low wind take off and slow speed stall potential. However, I won't have anything to compare to, until I also carve a normal size wing or try an actual spitfire.
In layout out my templates last night, I scaled up both main wing and front wing 20%, but the front one looked way too big. So now I've scaled the back one 20% and front one 10% ... so I will be able to report if this caused a balance issue soon.
I figure the nice thing about going bigger....I can always carve them down, but once too small, that's it.