hermies question

Do hermies start off as females then grow balls only?

Or can they grow balls first then later on show female pistils?

Or do they show balls and pistils at the same time?

My blueberry grow shows 3 males out of 4 . I heard about blueberry having alot of hermies. So i just want to know to be sure before I chop down the males. I don't mind keeping hermies to see how they grow.

im not sure if they can do both but the hermie i got in my last grow developed the pollen sacks first and then the white pistils.