I am surprised no one has answered this for you....
I have never tried it... so I cannot say... I have never left males after they were sexed and I have never had one show sex (or grow balls) until after put into flower (12/12)..... if you are getting balls before they are put to flower I would guess they are either auto flowering (like low rider is) or they have been majorly stressed. When normal flowering occurs they are not supposed to bust open until they are fully developed and this can be just a matter of days after development. So if they are developing now in preflowering (vegetative) status, then I would expect they could pop open and do what they are supposed to do....
serpentine5 Reviewed by serpentine5 on . Can male preflowers release pollen? I've searched everywhere for this answer and come up with nothing every time, which is surprising considering how important the question is. Can males only release pollen after being put on 12/12? Or can the preflowers themselves release pollen? Rating: 5