Hello sir/m'am, thank you for your question.
This device is intended as a training aid.
According to the PGA Rules book:
1. Tees (Rule 11)
A tee is a device designed to raise the ball off the ground. A tee must not:
be longer than 4 inches (101.6 mm);
***be designed or manufactured in such a way that it could indicate line of play***
unduly influence the movement of the ball; or
otherwise assist the player in making a stroke or in his play.
Although you cannot record a stroke used with our Product for record officially, using it over time will definitely enhance your play. There is nothing wrong with using during practice rounds to develop your game.
It really shines on the range too where you can insert a teen in the center and quicky rotate it with your clubhead to drill on finding a line of approach on the varying angles from your position to the many flags and their position.
You don't have to hit off of it directly to enjoy the benefits either. Use in front, behind or beside your balls position, put one near your feet one at the ball etc...your imagination is the only limit.
We even see people using it on the green.
we just posted some new pictures on the website showing these techniques.
Hope this helps!
Can you use your own tee with it?
So when this was designed we wanted to ensure maximum compatibility for tees as some have their preferences.
We went to Dicks sporting goods and bought pretty much every standard tee they had.
The center hole and the retainer clip will fit with in our estimation 90%+ of all standard tees out there to include wooden ones.
The specialty tees are a little trickier, but standard tees do work with a high rate of success.
The Included 6 Tees are from Evolve Golf and are their Epoch model which is one of the most premium tees available on the market.
Hope this helps and thanks for your question!
-Blake & DivotIsland Team