I'd probably boost my grade for The Yellow Shark a bit from when I wrote that review in 2008. Aside from that I might upgrade Waka Jawaka and The Grand Wazoo another point a piece: I still have some reservations about them (I remain less wowed by Zappa as a jazz artist than I do Zappa as a rock satirist) but they're definitely a lot of fun.
I'd also upgrade Sleep Dirt a lot now that I have the 2012 remaster that goes back to the original mix without the terrible female vocals.