Always re-tighten before each round.
An ingenious idea. Only one drawback. The threads that screw into your shoe will rotate counterclockwise as you swing and pivot your feet throughout the stroke. I kept losing the left toe spike on the course. If the designer of this product would make small cuts into the screw threads (like mini barbs) so that they will not rotate counterclockwise and fall out.
Rating: 4 stars