Don't get me wrong, the guys boxing skills are superb, more so in fact the many at the top of the 147 crop imo. Seems to me if the guy had just a little more pop he would be a major force to be reckon with.
i think he has only 14 ko's on like 27 wins. he ain't no paulie, but he does lack serious, fight changing power.
He doesn't have great power but he has good timing and speed which make up for it. He hurt Ricky Hatton and hurt Berto so the guy's got SOMETHING there.
He has the power to hurt you just enough to make you respect him but one shot power no he dont have that. his speed is what really makes his shots as powerful as they are now, so its not really that he has power he just has good speed and throws sharp combonations
He may be a little weak in power, but feather fisted is someone more like paulie malignaggi or joe calzaghe, guys with rather little upper body strength. Collazo has better comparative power than the real feather-fisted ones.