Less is more! It's a recurring theme of the Eclectic Approach. Here is a very simple taping technique to improve the stability of single leg stance.
I first started using this tweak tape on two of my patients who are currently training for a half marathon and one who is training for a full. The first two of them had medial arch pain, and all other movements except single limb stance were FN on the SFMA. SL stance on the involved side was DN.
Using this simple tweak tape (RockTape's name for a small piece of tape, instead of taping along a longer line or pattern), enabled two to run completely pain free, and this third runner to improve his single limb stance to FN. The FN test extended to the single limb stance anti-rotation test, which was given as homework maintenance a month ago. He improved with it, but still had difficulty with increased resistance. This taping method also improved his stability in that exercise to rock solid!
Also, all runners had the tape on between 5-8 days with multiple runs, pretty sure you can only do that with RockTape!
Didn't get a pre-test for this, but he had to repeatedly put his right foot down and tended to lean to the left to compensate for the pull of the band.