here's one you guys aren't going to believe. I read an article on james jamerson ,my idol once in it he said his strings on his famous precision bass were 11 years old.i couldn't believe it.well this November my ghs flatwounds will be on my p-bass for TWENTY THREE YEARS. they still play in tune and intonate sound great like jamerson. no need for a mute or piece of foam by the bridge. time has served them well. I have no plans of replacing them. why mess up a good thing?