One week into my first set on my jazz, diggin em, lovin the feel, much closer to rounds in sound than I thought they'd be, still fairly new though. Any regular users of these out there? What's your average lifespan?
I give mine a denatured alcohol bath every 4-6 weeks to refresh them, and replace them after about a year or so. They do sound more and more "flattish" as time goes on.