No sir, not as far as the nickels go
When i bought my Sadowsky RV5-PJ, I got one set of each of Sadowsky's 4 kinds to try on it. I thought stainless strings took away from the P nature of things, but that the black nickels maintained the most aggressiveness.
However, me and the PJ thing have never bonded, and I flipped that bass.
All my main gigging basses are JJ's and I mostly prefer stainless on a JJ.
For the SAdowskys, I like the blue stainless.
Hope that wasn't too long of an answer!