taper wound

Tone Diff? - Hard to say... some argue that being its not as much string mass in contact with the bridge saddle, the lower freq aren't transfered as much as non-taper wound.... hence brighter. but I'm not 100% sure thats true...
Fee Diff? - taper's will vibrate easier.

 

yea, theres really not much difference in tone from what i can hear, and feel, not much ither, just make sure you only put them on a string through body bass... or ull feel like an idiot fer the next month 2 months or how ever long u decide to keep them.