2 couples coming to Napa for the first time in October for 3 days, 2 nights. I have been reading all of the forums and am overwhelmed with all of the different choices. Are we better off doing one tour a day and then different tastings? Or should we do a tour in the morning and one in the afternoon? The other problem is 3 of us are RED wine drinkers and the other likes her Pinot Grigio (light, fruity wine). Any suggestions on vineyards to visit to make everyone happy? We will be having a driver for part of this so we can drink without worrying. Thanks for any input!