I used to have my BTB7 strung with Ken Smith Compressors and GHS Pressurewounds in various sets:
First set was Ken Smith CRL Compression Wound Light (040 058 080 102) + C125-T Compression Wound Low B w/Taper Core + C028 Compression Wound High C + B.020 (from Ken Smith Bass Burner series for the high F, which actually was just a plain steel string, but it had the same purplish silk color at the tuning post side, just like the rest of the strings).
Then I switched to GHS L7200 Pressurewound Light (040 054 076 096) + PWB128 Pressurewound Low-B + PWB28 Pressurewound High C and kept on using the Ken Smith high F from the previous set.
Then I wanted to try the highest tension and switched to M7200-5 Pressurewound Medium (044 062 084 106 128) while maintaining the High C and High F strings from the previous set.
For the fourth set, I took only the previous set EADG strings off the bass and installed the ML7200 Pressurewound Medium Light (044 058 080 102) set. So, the Low B, High C, and High F were still from the previous set.