End of Week 7:
So, as much as I was feeling behind and over-grown last week, I realized there was a solution: Top the plants back down to size!
So A and B got aggressive haircuts today. Brought them down from ~38 inches down to closer to ~26.
I am taking a couple clones off of A because her first and second clone attempts for making female pollen with failed AND because I think I would like to see if I can get one of her clones growing outside. I'd like to see what kind of timing a photo has when exposed to the local conditions here. I may get nothing (frost may come before harvest does), but I think the experience will be fun.
Also, because it's legal, I can KNOWINGLY plant it right where my stupid busy-body neighbor with the chain link fence can see it from his kitchen window, if he were to look long enough and with enough interest - which he always does... (This is my little act of rebellion in response to the complete lack of privacy I get in my back yard. Well, that and helping my spouse build a 13 foot tall garden shed that looks like a barn right in his line of sight which I then filled with rabbits.)
Plant C is setting up to flower right on time. Proto-buds are forming, and I think there was *just* enough room to accommodate the stretch.
In good news, I MAY have troubleshot the issues I'm having with my GA3 treatments - they may have been too potent! Plant C seems to be forming what appear to be solidly male pre-flowers on the GA3 branch!
It looks like the issue may have been that my past solutions have been too strong. There is a bi-phasic effect with GA3 where low concentrations promote male flowers, and high concentrations promote female flowers. My original solutions may have been promoting aggressive stretching and
female flowers.
I discovered this when I was too lazy to make new solution, and just diluted down what I had. Within 2 days, I noticed these little ball formations starting... and now they look pretty convincing for male flowers.
Prior to that I'd been using my homemade 40ppm silver combined with the GA3 stock made in my usual fashion - to no effect. But as soon as the GA3 was diluted down, I started seeing changes! So I will be making weaker stock from here out, to see how that goes. It's just a real pain trying to make a well-measured solution at home... Even my littlest 0.1g scale can't measure the weight of how much GA3 I'm supposed to be using for a 100ppm stock. I would need some of the medical-grade equipment that measures down to 0.001 of a gram for that... Sometimes I miss having access to that kind of gear. I don't miss the hours, or the co-workers, though...
Anyway, Who knows? Maybe I'll get this process figured out yet.

The Grow Weed Easy page for making feminized seed doesn't have instructions for using GA3 yet... If I science the heck out of this, maybe I can contribute to the greater body of knowledge!
But seriously... this was supposed to be the easy seed run. Plant normal seeds, get male, make seeds, profit! Instead, three regular seeds were planted, and NOT. ONE. FREAKING. MALE. GREW?! I may be cursed with the kind of curse that a sensimilla grower would have appreciated...