And nobody has anything to say about this?
The one reservation I'd have about it is the lack of a paper trail. One may assume that you've programmed the HP properly, and the course would stand up to a validation by traditional measurement. But suppose I were to take a stab at it, on my shiny new bike, with a shiny new HP, with instructions that I'm pretty sure I followed correctly.
If my measurement comes out close, who's going to question it, and how could it possibly be checked? At least with traditional measurement it's possible to find the errors without doing a full validation.
Is it possible we're going back to the days of "distance because I said so" with this type of measurement? Or is there a way to check the results?