So, yesterday I received a call from Portland Oregon. When I checked my voicemail it was from Phylos Bioscience, inquiring about how my growing season is going.

I must have given them my # when I registered over there a few months ago.
I have spent a bit of time looking at the strain universe on there site.
I bring this up because Phylos Bioscience offers a kit that tells you the sex of the seed. It ain't cheap, but if you just have to know, they will help.
On another note. What happens if you find a male, not just any male, but a Mr Universe qualifying male and you run him through a battery of stress tests.
I.e., light leaks, high ferts, high and low temps, root cropping etc.
Once you've found this male to be as solid as a statue, with not even one girly pistil and then you administer STS to him and force him to sit and pee. Would the S1's of this Male be 100% male?
I'm sure you know where I'm going with this.