Let that be said.
Now I don’t claim to be a marathoning guru but my coach is and I feel I have a pretty good handle on it but still tons more to learn. But I have entered 5 and finished 5. I have stepped off the course a few races in my lifetime too and it happens. But it has never been from lack of preparation or running too fast. Typically it is from an injury or upset stomach or cramp, etc. No one likes to quit.
Using a training tool that simply gives you more information than what you feel just seems right to me.
If someone came up to me and asked, “Dude, we need you to drive this car from Chicago out to the suburbs some 26 miles away, but… we removed all the gauges like the odometer, speedometer, gas gauge, etc, could you do it for us?”
Sure I could. I could drive by feel and probably do a pretty good job of it. But think of all the speed zones I would go thru on the way there! That would require some serious guesswork. And what about gas? Is it full, half empty, what? Man, it would just be so much easier if I could get the feedback from those missing gauges!
More and more of the top world runners use some sort of scientific device(s) for training/feedback. It is just being plain stubborn to not acknowledge this. Even Wetmore uses them on the guys.
The key is not to be so closed to the idea as to ward off potential good runners by trying to make them feel it is not necessary.
Like the gauges in the car, they aren’t necessary. But who’d be a fool not to use them?