How do you select a male?

A question ive never seen asked, is when breeding/propagating ganja, what qualities would you look for in a male, that would show up in a female? I already know what qualities to look for in a female, but all those seem to be wholly different than that of which I would look for in a male. Does any one have any breeding experience that could help, or is it kind of like hit or miss?

right at the very top of this page https://www.rollitup.org/advanced-marijuana-cultivation/20319-seed-production-tutorial.html

very good question. start with how fast it sprouted and how well it grew, also check for roots how well established they are and stalk size. Check for deformities like leafs growing weird. collect polen on cotton balls store in jar.