I purchased TOUR TEMPO during the holidays, read, listened to the DVD, practiced, and then took it out on the course. My practice swings in the living room as I watched the video seemed impossibly fast in the beginning ... " I can't swing THAT fast," my brain said ... but then I sat down, flipped on the Golf Channel, and tapped out the tempo of the pro's swings ... and sure enough, they WERE that fast, and were close to the 3:1 tempo. I realized that my S-L-O-W backswing followed by a similar tempo forward swing (to avoid errors) was killing my distance--and not always helping to eliminate errors anyway. Despite my inner golfer screaming "You can't swing that fast without hitting it into the trees," I repeated the mantra, "Swing Speed = Distance" over and over again. Then I trotted out to my local course in late December, 40 degrees, not a recipe for big drives. WOW. My drives went anywhere from as far as in the summer, to as much as 20-30 yards further sometimes, with wet fairways. Repeat after me: "Swing Speed = Distance." I am not a big slicer anyway, but I now find it almost impossible to slice. The slightly abreviated backswing encouraged by the rapid tempo seems to short-circuit a host of swing plane ills (many of which occur in the final quarter of the backswing, in my estimation) while encouraging a more flowing, natural kinetic chain. I can audibly hear a much bigger "swoosh" at the bottom of my swing. The ball goes straight and far. My approach shots on par 4's are now 140 yards instead of 170. I have invested $25, and about 3 hours reading, practicing, and gained ALL of this good stuff with nary a pro lesson, and relatively little sweat. Now I simply chant, "Swing-(pause)-Set-Thru" and play better golf all the way from tee to green. Tour Tempo? For me, a big thumbs up.