If you look closely at the nodes. A 100% female has; stem, fan leaves, the budding/cloning site and hairs. Any "extras" should be watched closely. Hermaphrodites have both hairs and egg shaped "sacks". While males have sacks of pollen and may not have "hair" structures at all. My VCBD has female hairs, fans and budding branch only.
The RX sitting next to it however has hairs and sacks so I'll be placing a clone in as soon as it goes into veg. This way I can check to see just how much maleness it is.
I wouldn't want to wait too long and have my females and this (?) party one night without protection and I return to no budding, nothing to smoke...but all seeds. I have pics posted of this VCBD nodes but don't know how to retrive them.