Just a guess:
Precision basses are (usually) fretted rather than fretless. This forces the player to have perfectly precise intonation. On a double bass (or any other fretless instrument) it's easy to stop the string at the wrong point, creating inaccurate, imprecise intonation.
Precision basses are (usually) fretted rather than fretless. This forces the player to have perfectly precise intonation. On a double bass (or any other fretless instrument) it's easy to stop the string at the wrong point, creating inaccurate, imprecise intonation.