Today I checked the left wing for twist. I first blocked up the wing with two 4' long 4"x4"s, one on outboard end and one on inboard end. I then added about 1-3/4" more under the aft spar on both ends until I got a level reading across the top of the D-Spar and the AFT Spar. Then I checked for level on both ends and in the middle of the wing. It is level all over so there is no twist in this wing. I am not sure how to check for "square" as called for in the instructions. I will ask RANS.
