As the theme is "Wines of Napa and Sonoma" the list of whites has a huge need for Chardonnay. Those who have not chosen yet should consider something in that category. Right now there are 8 reds (very big ones too) and 4 whites of which two are heavier than the other two. A little balance in that regard would be good.
Also as this is the season of Rosé in CA and with so many producers making stellar ones, it would be very representative of CA to have some Rosé.
The list is shaping up but the "Dry" descriptor still needs to be fixed as it does not describe what is in that section of the list. Maybe do like a typical list and use:
Main Heading--> White
Sub-headings: Dry, Off Dry etc.
Same for red.