
I've tried all the flats on your list.
My favs.
1-TI-flats- tone, feel. tension. ( I like these the best.)
2-GHS flats- Similar to TI-flats. a little tighter tension.
I like these string on Hollow body basses.
Good, retro-tone.
3-Sadowsky flats- I use these on my 5-string.
Good B-string.
Don't like.
1-Fender flats- The do not age well. lose of tone.
2-SIT-flats- Did not like feel, or tone of these strings.
3-Jamerson flats- Good tone, tension to tight.
Tuff, on thin necks.