Male Run

Yes I have. The fatter rounder nice volcano ended seeds will be healthier but not always female thats a myth. I have experimented with ethylene soak but takes too long to tell. Buy fem seeds

All I can tell you is I followed the same stuff you are talking about last summer and all I got was random selection.. or worse. Its a 50-50 thing roughly so plant more than you want. Good luck 👍

Only possible if you’re a scientist with special tools unfortunately! You can always send out your seeds and get them checked. Try picking gender of a bunch of seeds, then send them off to see if you’re right? Good luck!