Re: New iron cobras = useless tama....
Springs shouldn't be covered by any kind of warranty. Just as beaters and drum sticks aren't covered. And they're cheap enough that you should've had spares. My list of spares I keep with the kit are beaters, hi-hat clutches, springs and S-hooks, snare wire - make up a little toolbox with those parts and keep it in the car everytime you go out for a gig.
I doubt there's anything wrong with the pedal.