1 DCBirdMan 5 months ago About the the best catgory for this inquiry(?)I switched over to flats for bass about 10 yrs ago when I also started playing up right. But I am expermenting w/ them for guitar also. With roundwound nickel, etc. (and for that matter, bronze roundwound acoustic strings) the new crashy sound goes away pretty fast. Some obsessives change strings once a week, etc. But if you keep them on longer, as most do, then they sound duller, but work ok, but after while don't intonate well because junk from your hands gets in the windings, etc. Roundwounds sound dull from the start, and don't accumulate junk on them as much, especially when you when you clean them... in this regard I am thinking they last longer than round wound... hopefully so cause they cost about twice as much.So how long are you keeping your flatwound strings on for. Wondered how to tell when they are really are ready for replacement. Keep in mind I am only 2 weeks in to this flatwound experiment.