Flashlight/laser work out is by far IMO better than troubleshooting your swing on a full plane board, unless you know your plane, your shifts, etc.
Half plane board to show the concept seems to make sense for the clubs action on an inclinde plane, the up, back and in.
In fact in my research and studying I find the pictures in 10-5, 10-6 and 10-7 support first to learn with Light after you grasp the motion on an inclinced plane. In fact still trying to see how to tell golfers to place lines on Mirrors to help them with their swing as well as defining the correct lines for video analysis (though I am closer on that).
Threaded Mode
