Interesting info mo. Ty for taking the time. I must confess, i still have so much to learn in regards to breeding.
What traits do you look for in your males? And have you noticed a trend as to what traits pass the heaviest from the males?
You want shorter more squaty males with shorter node spacing. Long stretchy males tend to have more hemp traits and are no good. That's about it really. The traits you see in a female you won't see in a male really. True breeding would be to breed with every male. And then pheno hunt 100 seeds at a time til you can find the traits you want in that female that correlate to the male you used.
Most of us can't do that. My last time I chose a male. I just flowered 14 males. Chose the one that was most appealing to me , that had the best structure and had the best smell from a stem rub. That doesn't necessarily translate to the terpene profile that plant will produce. Some of the time it does.
Hardcore breeders like Chimera say the only way to choose is trial and error. You don't know what you have with a male to run a 100 seeds of its off spring so to speak. Like I said above.
A good book on breeding is Marijuana Botany by Robert Clarke