My opinion...
+1 on the LaBella Hard Rockin' Steels
No way with TI Jazz Flats, I have these on the P and they are great strings (very musical and easy to play, but best mwaah

...and definitely lightweights on the harmonics as compared to roundwound Rotos or Labella SS...or even Labella 760). I would really like to hear opinions about the TI Jazz Rounds (did you ever notice the picture of the jazz bass on the TI string package having the P-bass knobs like Jaco had on the Bass of Doom

).
Another recommendation would be DR lo riders IMHO