Not yet. For the record, I have them on my M2000 Tribby, my L1500 fretless and now the L1000. I've had them on the L2500—where they were OK as well, but I now have Dean Markley Blue Steels on there for other purposes. I tend to treat the L1000 as a kind of super-P-bass where I want the mid-punch of really good flats—and for me the TIs are just that! I've had the same set of TIs on my '68 Fender P-bass for a decade and a half now, so I guess on a string $/year basis they're a pretty darned good deal—and they still sound just right. I also love the feel of TIs under my hand. These strings have a kind of "bite" to their sound that can be uniquely heard through a stage mix. It's impossible to describe well unless you've used them, but the TI fans here will know what I mean. I really think they're "it" for the L1000, at least for the blues, jazz, R&B, and classic rock that I play these days.