Just ramdom thoughts...
In a golf swing you have a weight shift from center - right - left. Balance board could work in direction front - back. I used a 2"x1" stick under a board. Stick was in the direction of target line. I hade difficulties first to make a normal swing. (Not to think that I am standing on a wiggling board. After I was prave enough not to think of my balance, it worked "okey". I had problems in a balanced finnishing stance.

br. Hannu
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