Thanks budlee, and everyone....all about sharing the knowledge. Its a lifelong journey.
I am going old school, actually old hippy I was told, and just going for it this go round. Purposely no measurements. Just the eyeballs.
I always start at 1/2 strength in RO water. My preference. So more of a 1.5g -1 g - .5 at first, then a 321. That's from seed soak. Now I'm just watching the leaves.
The PPM, EC, or even PH should be checked if you don't know your water or media. (Public Service Announcement) EPECIALLY if you make bricks turn to media.
I am fortunate to be a guest here on a beautiful Hawaiian Island and the RO water mixed with my media is good enough.
Peace