I think that there might be one problem with putting the female back with the other females. Why? The reason is simple.

If you over-pollinate the female and some of the pollen gets dropped on the leaves or surroundings of the plant, and you put it back with the other females... Your fan(which I assume you have because most indoor growths use a fan to make the plants stronger and thicker) may dust off the pollen and it might land on another female and pollinate her aswell.

The odds of this happening are pretty small imo, but it's always better safe then sorry =), be sure to wash the plant lightly with a cloth or a sponge to be sure you've cleared all trace of pollen that might have been left over.

Cheers

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