The "Truth" are the Laws that govern impact and ball response. Trackman doesn't use Low Point which is needed to calculate the AOA. It's an Aid, but not a substitute for knowledge.
Don't make Trackman out to be something it's not. If you want to teach a different swing for every club in the bag, then that's your interpretation, but not Trackman. The guy in the Video is using Trackman to justify his own beliefs and teaching method. That's not observation.
Not a fair comparison. Not comparing apples to apples. You need to go:
157 * $5.00 = $785.00
There, that brings the cost of TGM much more in line with TM.
Kevin
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I could be wrong. I have been before, and will be again.