I decided to replace a 5+ year old set of TI Jazz Flats that still feel and sound pretty darn good, primarily because the G-string outer wrap is starting to unravel from the core in the section around the tuning peg.
The new E-string sounds blurry and indistinct in comparison to old E -- almost difficult to hear the fundamental -- which differs from other accounts I've read here on TB about extremely bright new E- and A-strings. The new E and new D also have silk wraps and presumably windings beneath that look different from the rest (pictured below). Has anyone encountered dull strings on a new set of Jazz Flats? Are the different E and D cause for concern?
I've also noticed that the new set feels less flexible than the set it was replacing (and is now back on the bass). Do Jazz Flats break in in sound and feel over time?

The new E-string sounds blurry and indistinct in comparison to old E -- almost difficult to hear the fundamental -- which differs from other accounts I've read here on TB about extremely bright new E- and A-strings. The new E and new D also have silk wraps and presumably windings beneath that look different from the rest (pictured below). Has anyone encountered dull strings on a new set of Jazz Flats? Are the different E and D cause for concern?
I've also noticed that the new set feels less flexible than the set it was replacing (and is now back on the bass). Do Jazz Flats break in in sound and feel over time?
