I used the wing fold lock brackets to determine how far back the wings need to fold. I found the the wing lead edge was even the H-Stab ends.
The Model 5 build manual does not list a step to fold the wings and check for clearance between the #1 rib and the rear cary through spar. I discovered it the hard way and had to grind on the #1 rib on the left wing after covering. Not ideal and wished I would have caught it pre-covering.
Also if have a pitot mast, check to make sure it clears the top of the H-Stab when the folds are folded. I mounted mine where the manual says and it contacted the top of the H-Stab when the wing was folded. I ended up cutting 1" off the mast. Some have mounted the Pitot on the inside of the lift strut which would eliminate this issue.
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