A very wise man!

. Have a view of "Standing In The Shadows Of Motown" DVD (especially the included *jam sessions*), if you would like to check out a master of P-Bass tone". Bob Babbitt - R.I.P.- , is a flats player who used a sponge mute under the strings, typical, in many cases, to the times, for getting the bass to *sit* in those Motown records.
There's a story told about James Jamerson, the revered Motown bassist, who came into a recording session so drunk one time that they had to lay him down on the floor so he could do his work. How's that for a respect for a first call bassist. These guys loved their old dirty flats in the mix. Just OLD is good enough for me. I prefer cleaning with rubbing alcohol.

B.