Re: iron cobra
I don't own a rolling glide but I do play powerglides and speed cobras which have the round cam. The obvious differences in the overall pedals' desings are quite noticable but I feel no difference in the effect of the different cams. My playing certainly isn't altered in any way by the power glide cam. They might simply amount to a harder hit? Not sure really.
I've read one person say he felt like the powerglides caused him to hit early. Just rolled my eyes at that one. Even if that were somehow true I don't see how it would take more than 5 minutes to correct that problem.