I am not so sure that the Jazz was used on any of PW...on MP it was definitely used on Tom Sawyer, probably on YYZ and maybe even Limelight (there are many debates on which bass was used on this track)...On Signals it was the Ric except for Digital Man and The Weapon, which I have heard were the Jazz. He started using the Jazz again full time on Counterparts because he wanted a more beasty bottom end and the Wals that he had been using from 1985-1991 just did not suit the type of music on Counterparts. He has stated that he does not use the Ric anymore live (other than Passage to Bangkok on the S&A tour) because it is just too heavy to have around him for a 3 hour show....greatest thing about Geddy is that he always sounds like Geddy, no matter what bass he plays.
Hope this helps.