George / Lake Barrington, IL US
I have a Tour Links 9' Training Aid in the basement on carpet for winter practice.
I've had a couple putting mats. I like the cup being below the surface instead of putting up an incline. A base seems to be important for the roll to be consistent. Curious to see if the birdieball foam provides a true roll or if it deforms when standing on it.
Medium - 10 - 11 Stimpmeter - Private Course