Yes, have been following John from the very start. 
He got into the Split Rail Vyd., which Ian had made a fantastic Pinot from. Older vines David Bruce used to source. He made his first wines up at Candy Wozniak’s place. Always really good, but they’ve notched up over the years. Fantastic stuff.
Alfaro has also gotten better and better over the years. He took over managing the rustic old vine Trout Gulch Vineyard and brought it to its potential.
Prudy’s really gotten a lot of these vineyards, like Lester, fine tuned. There’s been such great improvement overall in vineyard management in the region, with her as the shining star. Plenty of other talent, like Ken Swegels. A sequence of new benchmarks to show everyone the potential, and a very supportive viticultural association. Old timers like Ridge and Mount Eden have only gotten better. As Jeffrey says, all his work and all his improvements have been in the vineyard. The winemaking is essentially what Martin Ray did. Something people might not realize, but organic farming is the norm. The regional issues are known and the solutions shared.
Fogarty and Neely are a couple others in the top tier of Chards.
Some in our OL group tried the first Sandar and Hem Grenache rose, which is lean and crisp, just enough fruit, stony. I had one alongside a Fevre Chablis and it was a bit of a Twilight Zone moment. Rob’s focus is Chardonnay, making five in 2019. He thinks there are five superior subregions for the grape in the AVA and wants to showcase the best from each. One more to add, since he gets two from the Ben Lomond AVA.