I use them in fact for 7 or 8 years. I previously had pearl Eliminator dw 5000 and tama iron cobra. Warning, these pedals are for me only to play fast metal, if the power you need, forget right away. In terms of speed, it's a Bugatti Veyron, you will not find more swift, the pedal is flexibility and unprecedented speed, it reacts to the finger and the eye. The construction is also more robust. Only downside in fact, its high price but fully justified given the quality and efficiency of the pedal, made in the USA what. No desire to change, and for all drummers who want speed, hesitate no longer and forget your iron cobra made in china crap!