It's more of a nastalgic thing
Fair enough.
and I've always liked the concept going thru the body (there's a whole other can o worms).
Just one?
Certainly more fine tuning capabilities with a 4 saddle bridge. But Leo's original primative design has always been my favorite.
The way I see it...if someone were generous enough to gift me an early example of P-Bass, I'd most likely leave it "as-is", but it wouldn't see much playtime either. If I were to start building a custom '51 P or '68 Tele Bass from scratch, it would most certainly sport a different bridge...
My $0.02 only...