Well
I have all three - the Ruppli, the Swing Journal (alongside those for many other labels) and now these interesting 4 volumes and I find them all helpful and interesting.
What I find I enjoyed was Tad's writing and input - not facts - I have the Ruppli etc for those (and many of the LPs/CDs also)
I never saw this as a discography but as a blog (which I happened to have completely missed online - now in print) - a document about "listening to" Prestige with yes - some facts missing or lack of access to all the music available - that was never the point for me.