Well lol I guess you don't care too much about stealth with this grow. Anyway your plants look really healthy and the females are going to yield great buds no doubt. About pollinating sections of the plants... There are plenty resources all over the internet and on this forum that'll show you how to do that but be aware your risking good nugs becoming pollinating by allowing the males to grow at all. My opinion would be just to clone the really nice plants you've got that come out female.