You think tennis rackets have gimmicks, what do you think about razors (for those of you who shave). First, you had single blades, then double blades that lifted each hair up with the 1st blade and shaved it off closer with the 2nd blade. Then there were 3 blades. It lifted the hair with the 1st, lifted it more with the 2nd, and shaved it off with the 3rd. Then 4 blades. Geez, the razors are getting big. They hardly fit between your jaw bone and your ear. Now, they have the Gillette that needs a battery. I think it shocks each hair until the hair crawls back into the follicle.