Most of the 20 + million recordings that have sold that I play(ed) on were released between 2001 - 2009. Christina Aguilara, Alicia Keys, Pink, James Blunt, etc,... 95% of those recordings were doen with old P Basses (mine and producer's "faves") with flatwound strings - Why? Most of the recorded popular music legacy that precedes us now and in any moment since the '50's has included a P Bass - a P Bass sits best in the mix, mastering engineers LOVE them, and the listeners' ears are most accustomed to them...that means producers, artists, and most importantly, THE FANS, THE MUSIC LOVERS know this sound and are quite comfortable with it...
peace and love!!!