blade sharpeners?

[jopes]

has anyone used one of these lazer blade sharpeners and had any luck with it?

http://www.fishusa.com/StrikeMaster-Lazer-Ice-Auger-Blade-Sharpener_p.html?source=googleps

[esox_magnum]

Few friends tried them over the years at best they just made it worse. I tried the exchange blades once to waste of money, save yourself the hassles and buy a new set and always carry a new spare set.