I have thought about 57s or Pearly Gates. Anyone compared them with 490s on your SG?. The JB/Jazz combo sounds great on my Epi with 500k pots, but not as clear sounding as the 490s of the Gibson. The Duncans are higher output and i think lower output pups are what yield the clarity. There is also a difference in other electronics compents between the two. I don't want to spend on pups that will be muddy. Opinions?