Male or female?

In my post introducing myself i mentioned that I have little to no expernce growing let alone hydroponics. I seem to have it down though. However I have searched google and a few other images to tell if plants are male or female. I think that I have pulled the right ones (at least I hope!!!) and have the correct ones going. I attached a few pictures maybe you wonderful people can help me out !
Dan
Here are a few pictures...what are what sex?...
"Bar 1"

"Bar 2"

"Bar 3"

"Bar 4"

"Bar 5"

"Bar 6"

"G-C 1"

male no dout

Male...........................

Each picture is a different plant!

Bar 1= MALE
Bar 4=MALE
Bar 6=MALE

Have to wait a lil while on the others.. Good luck man

bar 4 and 6 for sure male, the others need more time.

bar 1, 4, 6 and g-c1 all male

Sweet I already killed 1 3 and 6 a few days ago...gc1 is still around. These pictures were taken about a week ago. I am hoping like hell that I was not to late pulling them... I think that as soon as I go to them again GC1 is gone now. Thanks...and my next question is how far along do the males have to be before they release the pollen?

even though male still produce resin for hash making store up until you have enough in the freezer 10 fully veg plants should make you about 7 -20 grams

OK thanks...wow this really is a very helpful place.
thanks again
Dan

there is no hair on those balls