I'm also looking for a balanced-tension, flatwound 6 string set. My sixer, a neck-through Ibanez Prestige, is currently strung with a balanced-tension Circle K set -- gauges as follows, from B to C:
.136 .102 .076 .057 .041 .029
It was previously strung with a stainless steel R. Cocco set:
.125 .105 .085 .065 .045 .028
The R. Coccos were nice strings in many ways, but on this bass, the .125 B was was floppy compared to the rest of the strings. The balanced set is a little lighter in terms of overall tension (had to relax the truss rods a bit when I made the switch), but the B is much better feeling, and the bass really does feel more consistent from string to string. I'm considering trying a balanced set with a .142 B (254 pounds total on a 34" scale, or ~42 lbs/string average; individual strings ranging from 40-44 lbs), but I'm curious to hear this sixer with flats, and I'd like to hear a little more fundamental out of the B.
I have a set of TI flats on a 4 string Brubaker Brute with Bart pups that, I've mentioned elsewhere, are magic on that bass. They really sing and allow for expressive playing. They're pretty flexible strings but don't feel floppy on that bass. I tried briefly swapping the TI G and D with the D'Addario half-rounds on my fretless Carvin -- on the Carvin they *were* floppy/noodly, and on the Brute the half-rounds felt and sounded like sandpapered chicken wire -- so a lot, I think, is bass dependent. For what it's worth, the TIs also slap pretty well on the Brute.
I considered the TIs for the Ibanez. I like that they retain some high-end content and midrange complexity, but I think on that bass that they might feel a little loose. Also, $100+ for the set is an expensive experiment. I'm not looking for an old-school, thuddy sound on the six-string -- I still want to be able to chord cleanly, hit harmonics, and have nice sustain. I still want some midrange character, but I'd like to start with something other than the TIs, with a balanced feel and a little more tension.
La Bella Teep Talkin' flats are advertised as balanced. Not sure which gauge I'd go with there. People have mentioned the Fender flats. A straight set would be simpler, but I'm fine mixing and matching if that's what it takes.
Thoughts? Suggestions?
I might consider a set of flats for my fretless Carvin (Icon fiver) but the six is the priority at the moment.
Thanks,
Mark