Most of the products on the market provide simply numerical data, which is described in a way that normal people can't understand.

It makes golf difficult for beginners and even for professionals who has longer career.

The data is good, and I think I hit it well, but the flight path isn't what I've expected...

I'm sure you've been there.

Despite those problems, there's no way to check the reason why the ball flies against my expectation,

It's a downside of numerical data that only shows the numerical results.

The ordinary people has no idea to know how they have gotten those results.