TESTERS ANNOUNCED! BirdieBall Putting Mat in Past Testing Opportunities Posted September 18, 2020 Bret Van Riessen Sioux Center, IA During winter I use an indoor mat. I've never had a high quality mat. But it's better than nothing. But I would really like to have a new quality mat to get a better feel and practice session. I also use the hole out device where the ball has to go up a ramp and stay in the hole. It's definitely challenging but helps work on your speed. I'd like to try the fast birdieball putting green as that is typically what my home course greens run at. Thanks for the opportunity!