TESTERS ANNOUNCED! BirdieBall Putting Mat in TESTERS WANTED Posted September 19, 2020 · Edited September 19, 2020 by prum Pureum | Vancouver, BC Canada I have just been putting on carpet and focusing on the stroke and less the roll of the ball. But wish I could make the change to a real mat and see if it makes a difference. I used to work at a golf store with a really hard and fast green, and have experience on many common versions of a putting mat at various places. Fast speed.