Having played many pairs of hi-hats over the years, I came up with a theory, when it comes to matching the weights of the two cymbals. I believe that the bottom hat should only be ONE weight heavier than the top hat cymbal. Otherwise, the top will be doing all the work. I have a pair of a medium top, matched to a medium-heavy bottom, and have owned a medium-heavy top with a heavy bottom. I cringe when I see someone who has a paper-thin top, matched to an extra heavy bottom! Your thoughts?