This is a fun fanfuckingtastic breeding thread, I love it!
Not just the fun of joining along, but good technique.
Really gotta do hundreds of seeds to pheno hunt.
The more choice the better the selection.
What is the situation with the eight ladies selected from the first breeding round?
Did you just leave the daddy plant in there with the fan on?
You must have got a truck load of seeds, hundreds? thousands?
What are your criteria for selection?
You mentioned a couple, but what else, like color, yield, strength?
Don't know if you've got the space, but can you split the line?
Do one F2 selection for strength, say, and another F2 for color and other qualities?
Run those each a few generations, then cross them back, getting common strains in the new hybrid vigor F1?
And then looking for the winners of F2 again?