Thanks for the replies!

HD, I do adjust for plant weight, but it ends up being very little as my plants are smaller since I'm pushing them along to get done as I may be moving.

As for saturated weight? Each time I've watered I go till water runs out the drain holes fairly well. Not just a couple drops. Running out of each hole. To me that suggests that all areas are fairly saturated. Doing it this way in 5 waterings using this method, I've been within 1/4# or right on each time of the end saturated weight.

As for root weight, yesterday I took the root ball out of the male that just reared his head and washed them all off to see what they looked like. For one thing it was surely not root bound but the roots really didn't weigh much. Ounces. But interesting to see how they actually grow. All out the sides of the tap root and just out of two opposing sides. Interesting.

Mand, You're correct. People mess with these things way too much. I'm guilty of that for sure, but I'm the same way with anything I get into. Never one to just do it the simple way (and a lot of times the best way) but have to get in there and try to re-invent many aspects of the process or equipment used! You should see some of the new concepts I have drawn up for watering and reflective surfaces!

And yep too bad you aren't closer.

Rezinator, Have used Epsom salts before. They worked! But this type of spot was different than what I saw on the other plant that ended up having the Mg deficiency. They're just very small 'detailed' dots where as the ones that showed the Mg problem were larger areas. So that's why I even brought it up. Thought it might be something someone had seen as it seems so 'unique'. Course I'm sure all Mg deficiencies don't look the same with different strains. That could be the case here.