I bought an 2014 SG Special brand new online. It has the 490r/490t pup's. She is a very pretty guitar, however the lower register on the board seems a bit dead. Note's sound, but they don't sustain, like the lower register. I have not adjusted the pups at all. I was wondering if a pup adjustment or a good setup could help fix the problem? It seems to be all the notes below the 15th fret, not just a dead spot here and there.