Awesome! Love the setup! When the spurs come out, it's time to get all excited for harvest time. It seems like it will never roll around, then suddenly it's here and you're woefully unprepared. Maybe just my experience.
This is the part of the hobby that has me the most obsessed. SWMBO calls them my babies. Keep in mind I have 2 kids, so, whatever that means. No spurs myself, I would like to have as much growth as possible on my 3rd year nugget (pushing 18' now) and my 1st year Chinook (12'), Zeus (10') and cascade (6'). What fertilizer are you using on your four ladies?