The driving range that I practice at uses the artificial mats, which I have no problem using. I actually kinda like using them. But I'm at a loss when it comes to an aspect of working on my swing on these mats. I've been working very hard with my irons lately, mostly learning to strike the ball on the way down like you're supposed to. But since the mats are artificial, I can't create a divit to let me know if I'm striking at the right point. I've seen people stick a tee in the ground in front of the ball when hitting on grass, but I can't do that. So I was just wondering if anybody here has come up with a brilliant way to be able to check for this without vandalizing or causing damage to the mats.