D’Addario Rounds

[dmc79]

Never used D’Addario bass strings much other than some XLs briefly on a short scale I didn’t keep for long. Bought some XT on here, fitted today and trying to play the fresh string zing and squeak out of them. 
 

Just wondering what the difference is between their rounds. XL seem to be standard, not sure what NYXL offers, and XT has some sort of corrosion resistant coating, but the coating isn’t particularly smooth.

 

That said, I’ve been going back and forth between Fender 9050 flats & GHS Pressurewounds, so most nickel rounds are gonna feel cheese grater like I suppose. What’s meant to be the smoothest feeling D’Addario round? Which have you tried and liked or disliked for whatever reason? 
 

I’m not insistent on staying with D’Addario, just curious as I’ve never played their bass strings much. Also the XT might be fine once they’ve settled in, but one video I saw had them dying off pretty fast. 
 

Suppose really I’m just after a nickel round that’s as smooth as possible. Is the Elixir Nanoweb coating very smooth feeling?
 

GHS Pressurewounds are definitely quieter in terms of finger squeak, but I’m not a massive fan of the feel and stiffness of them (even the medium lights) and they’re also a bit too middy for me, where I want something more well balanced all round. Appreciate any replies 

 

Edited 2 hours ago by dmc79