I've been a D'Addario XL-170 user for like eons now....As well as Elixers too....I have used the Dunlop Nickels (black pkg) a few times here recently with pretty good luck.....I have not yet tried the SuperBrights. Needing some new strings and being long over-due I just ordered three sets from Bass Strings Online.....Two 4-stg sets and One 5-stg set....AND PRICE-WISE...IT DON'T GET MUCH BETTER THAN THIS... $40.13 and Free Shipping for the three sets....I have read mostly good things about them so I'm hopeing that they are great....Never know until you try them I guess.