A touring PGA Pro says:

"Although I was never one to embrace training devices, believing that the swing is a result of natural feel, the "Duffix" Swing Trainer is the first and only swing training device used on one's own golf club of choice that makes you feel and release properly throughout your swing plane."

David from Georgia says:

"I have to tell you this, then I'll quit bugging you! I swung the trainer for about 15 minutes Friday and went out on the course in the afternoon. I broke 90 for the first time in my life! There is a short par 3 over water. It has been my psychological downfall ever since I started playing this particular course. I put the ball 8" from the pin for a birdie. I put more shots in the fairway than ever before. I simply cannot believe what your swing trainer does. I literally felt I was throwing money away, by paying greens fees to play so poorly. Not any more. Thanks so much for putting a product out there that really works! You need to bite the bullet and get this thing into the PGA Superstores."