I had a mexi Jazz bass that had both wolf tones and dead spots and when I bought a high mass (Pedulla) bridge from one of the guys I worked with @ Bass Player Mag. and put it on the Jazz all of those problems dissapeared.
With that discovery I modded almost everything on the bass and now it's one of the best sounding basses I own & I have 10.

So I think a high mass bridge can be a good thing. That said I do own more than one that has a "standard" type bridge.
peace....rock on......Capt Kirk