Todd - Thanks, that is what I was looking for. Not building a Cozy, but similar, started with a LongEZ set of plans & it evolved. I'm to the point of making sure the CG & lift are in the same general place & that is hard when you can't compute lift.

I see you did those with XFoil (which I messed with many years ago, but I have forgotten anything I knew) - I have been trying to do the same with XFLR5 but I keep getting errors that it is unconverged after 100 iterations...