...and these are the best-sounding nickel roundwounds I've ever heard. If they last me a coupla months, then the game is over and these are it. I was playing regular Slinkys, .050-.105, which I thought sounded great, but they died kinda fast - about three weeks and the E string was making a dull thud. The TI's which are .047-.107 are somewhat lower tension, but not noodles. I may take about an eighth of a turn out of the truss rod. The sound? Huge. I can't imagine how nickels could be better than this. Kind of Slowound-ish, with massive mids. With the Slinkys, I was using some boost at 800 hz. for definition, but these sound just as good with flat EQ, and have more lows than the Slinkys. The down side is that they cost almost as much as Elixirs (Dude sells the Powerbass 4-string for $29). So if they last a month, no dice. Two months, and I'm done string shopping, at least for nickel roundwounds.