I used to swear by roto 66s,they have a good even sound...but about a year ago ,good ole lobster on youtube turned me on to MJC ironworks string,now i wont use another string,unless its my 1980s suzuki pbass,it gets roto flats,but the MJCs i have on my Fender Pj are a year old and sound like i put them on just yesterday..i play said bass everyday for AT LEAST 2 hours a day ,if not longer,on my days off ill literally sit and play all day,so the strings have definitely got their use and still sound great. Another thing i have fun with is trying out tge cheap little no name companys you find on amazon and ebay,ive found some really good strings that way,cant remember any names off the top of my head at the moment,but just look youll find them