Are my balls big enough? Lol male plant/pollen question.

I've got this male seperated from my girls and I wanna harvest the pollen to make seeds. When will I know the male plant is ready/full of pollen? Should I chop these sacs off now and let the rest develop?

First 3 are a node near the top and the last pic is the top

Let some open up until you get the feel for their timing.
They still have a bit to go in my opinion.

Nice looking plant to cross.