Let me add to the ChiSonic swap from last week. The strings make all of the difference, yes, bass player 101, but when I installed the Chi's I put on a brand new set of DR Sunbeams, which I previously loved. The highs were simply not there. The strings had the fresh, zingy sound when not plugged in, so I know they were not were not dead.
I wound up swapping the pups for a set that had a more highs and was happy. But, I kept going back to my DJ5 and TL6 and didn't connect the dots, until last week. The DJ5 and TL6 have Dunlop Super Bright Nickels on them.
Once I realized this, I dropped the Chi's back in, slapped on a set of Super Brights and BAM, the highs were back as was the tone that I loved in my old Chi equipped 4460.
I have Sunbeams on my 5502 which may explain why it sounds slightly anemic. I'm totally sold on the Super Brights.
Give them a try, low tension, low cost, punchy tone and good life span.