Flat wound strings are always a problem. It is not unusual to find a bad string in a set. But it is usually the thinnest strings that are problematic. But honestly, I do not feel it is realistic to expect a great response from a Flat wound B string anywhere above the 7th fret.
Eager to try the new Ernie Ball Cobalts. In my experience the flat wound b strings that do not have the exposed core and have more meat passing over the saddle tend to sound better above the seventh fret in my experience than the ones with the exposed core. They also tend to have more authority over all in my opinion.
The trade-off to that is that you can't get nearly the low action as you can with the exposed core. So far I really like dear Dario chromes, Ernie balls and then I really would like to give some Sadowsky flats another trial run.
I know a lot more about setting up basses using a machinist ruler per Rogers wonderful set up instructions than I did back then
Thanks for weighing in, Roger. After trying TI, Sadowsky Black Label and La Bella, my experience (albeit from a limited test group) seems to be in line with ElMon's observations. For what it's worth, the TI B string stays pretty well in tune up to the 15th fret. Not perfectly so, but enough that I'm happy to play a chord up there with the root on the B string.
At the moment, I've got the bass strung up with a TI B string, and La Bella E-G. Not ideal, but it'll hold me over.
I really like flatwounds

