I put the same strings on my 1987 Stingray. I set it aside for years because I lost the taste for its bright tone, but the Cobalt Flats brought it back into rotation.I haven't put flats on my Jazz yet, but I recently had a set of Ernie Ball Cobalt Flats put on my Stingray, and the tone is so good.
To be concise, the tone of Cobalt Flats is: a marriage of almost flatwound thump, with almost roundwound sustain, with almost no finger noise. A slightly sticky feel which slowly goes away.
If you haven't tried them, treat yourself.
Mike
