Can you clone 1 week into flowering?

Can you clone a plant after its been flowering for a week? I Have some bag seed flowering undering a 400whps and I wanted to top them anyway but is it a waste of clonex and time and energy to clone these tops or even take any other clones? I can see one is female the others don't have hairs bursting yet.

Yes. But it takes a while in 18/6 to put the plant back into veg cycle. Usually about 2 weeks.

Yes. Flowering clones take longer to root.

just here to back up mr fishy and killerweed. both are correct.

Ok thats a plus. Thanks guys.