I played DW5000's and 9000's for quite a while. I did see the Speed cobra at my Guitar Center and had to try it out (without doing any adjusting to it), and the neat thing if you have big feet is that the Speed Cobra has a longer pedal plate, but I can't say it felt incredibly different from any other pedal I've played.
But I've been rockin' on my Tama Iron Cobra Jr. pedal for the last couple of years and my foot just likes it better than more expensive pedals.