I believe they had two A's at the SD staging area. Both with wings for design test and or crew training?

Steve Clark posted a note on the Anarchy forum regarding why the original hard wind A failed to thrill against the other A's...something about a problem with how the leading edge on the flap bent off to lee and was consequently way slow. Was corrected on the test rigs at the Oracle camp.
Which raises the question as to why we have not seen hard wing A's springing up all over?