Although the previous PowerGlides were / are still amazing pedals, these pedals are a huge improvement on their predecessor. Carrying on with the tradition of feeling the power in every stroke, it's so much smoother than the previous range of PowerGlides. This is strongly due to the Cobra Coil spring under the footboard and the new style beaters. Overall there is a lot more power, control and feel. I have been playing Iron Cobras for a long time and these new PowerGlides have helped me to re-establish why I don't want to use anything else.