I'll defiantly try the 25% stab thing since I haven't cut the cores yet. I actually intend to cut two or three sets to try out different dihedral angles. (I'm not sure I'll have enough foam after trimming off the yellow parts-see photo) I have moved the wing up so that it is much closer to a mid wing.

As for cutting epoxy with acetone, I have never heard of this. I have heard of cutting it with alcohol, but I usually use un-thinned West System for this. I like to squeege the epoxy to the cloth with a square of soft 3/32 inch balsa. I hold it so that the grain is vertical so that it will bend around curves

BTW, since the thing is starting to slightly resemble an Extra 330 S, I have tentatively named it the EXTRA-vaganza. (Ya gotta say it with a New York / Italian accent)