That thread seems to be closed, but after reading it I found something interesting. I pasted the 632A015 airfoil into a scan copy of the MAN Nobler plans. The plans show an airfoil that looks like the 63 foil, but has the highpoint pushed forward, may to 20-25%. From about 50% chord it has about 2% reverse curve to the flap hinge.
I built the Top Flight early kit years ago and remember it as having a flat section from about 50% chord to the flap hinge. It was possible to build it flat on a board with some rib shimming.
So the whole discussion is a bit confusing. Seems like for many pre-CAD plans the plans were more the draftsman's interpretation than an exact set of plans. Could be why I switched to building more from patterns and dimensions than trying to build on plans. Foam wings help.
Phil C