Now after 2 days of excessive tip rolling and testing i still find the twin blade spinfits (red) sounding best with the LX. No doubt......but after 2 hours they really feel like an enormous pain in the ass. Man....they scratch and pinch....like a too large cork at a place where it definitely shouldn't be. After 2 hours i don't give a **** on good sounding music. I just feel the urgent need to pull these things out and put the small finger as deep as possible into my ear canal. A dilemma.