Yes you are washed up Dick, actually we didn't want to tell you the twisted wing test is meaningless....... interesting but explainable I think.

Washin, washout and the like is finesse wing shaping stuff that matters when you are doing the fine tuning of a wing for a given application.

It is only prestall and lower that twist shows up big time. At the stall and slightly after maybe medium. When you fully stall out both wings big time at very high angle of attack then twist doesn't matter a lot.