@jcberedo
honestly, i am of the belief that if you suck, the brand of the pedal/s you use won't matter. thomas lang uses sonor pedals and he's probably faster than some people who use axis/trick pedals.
with that said, i don't think that the addition of the cobra coil alone would make you faster in the long run since technique is the most important thing once you reach a plateau/threshold/barrier. (ie. i don't think the new IC would instantly give me +4bpm.)
BUT of course feel is an important aspect in choosing a pedal. if you like the feel of something, you don't have to work as hard as you would compared to using something you don't like.
in short my advice is to test the latest IC's with and without the cobra coil. it's up to you to decide if saving money or having the "best" feel for you is important.
*personally i'd go for a new one if i had the cash. just because it's NEW. hehe. and i'd be able to fit in cobra coils, and remove them if i don't like the feel of it.
pero kung on a budget talaga, 2nd hand nalang. you can always tweak the settings to achieve the feel you want. i bought my IC's 2nd hand and i'm still flying. i don't regret the purchase.
my 2 cents po.