Many people beat balls off mats in the dome, just working on their full swing. I have had many players improve their short games effectively inside working off mats. The benefit to mats (as long as they are high quality like in the Buffalo Grove Dome) in the winter is, if you pay attention you can feel and hear mat-ball impact or ball-mat impact, which is what you want.|
This video will help you to understand how that works.
The Two L’s That Destroy a Short Game