Eh, it makes a certain amount of sense to me for the tour guys who are supposedly using them.

You were better than me, I was about a 13 when I stopped playing a few years ago, but I'm reminded of a club fitting a while ago. Fitter had the equipment you're talking about, I swung a few hundred times, etc. Then he was going over the data with me and only took the middle 80 swings or so. Basically I got warm, then swung a driver a bunch. After warming up my swing speed and swing was consistent for 80ish swings, then fell off a cliff. So it's not unlike any other physical training where you can be productive for a time then suddenly not, and training is about maximizing productive time.

That's what I figured, but since I pounded golf balls all the time I knew already how many to hit in a session. A balance between muscle memory and the practical nature of you're not utilizing the same exact shot type back to back on the real course also.

It didn't feel like rocket science.

Also, I just knew from experience how to transition to hitting balls and what % swings to use when. Once an adult and not competing any longer, I actually got better. I could toss in some gym a couple times a week. I got my driver "carry" up to about 310. And I'm not a tall guy.

My routine I'd do:
-putt for 15min to clear the head
-short game for 15min
-pitching distance for 15min
-light stretch
-short irons at lower % power
-short irons at full power
-middle/long irons
-some driver/3 wood for "dessert"
-short irons at lower % power
-putt/chip
-grab a soda
-go walk some holes

Golfers are numerous and affluent....and (kinda like triathletes) have a reputation of being willing to buy expensive gadgets if they think it will help their game.

Personally I think its best use in golf is as an excuse generator. "My drives are short today because my Whoop score this am was 40."

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ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)