It works for me I have stopped the ball dead, I am using super spin balls and it is wet in England (North East) at the moment so will reserve judgement until it hardens up a bit It is also helping train my downswing to come through on the right line (the weight of the club helps)

The most important thing it feels good and gives me confidence I am getting up n down in two on more than 60% of the time and improving. 12.6 handicap will soon be into single figures.