Not sure if they are begging to flower.

Alright, so anyone who could give me some insight that would be great. I'm doing an outdoor grow with some clones I planted back in early may, the problem I'm having here is that since the clones already had pistols on them I'm not really certain if they have begun flowering or not. I know that outdoors doesn't need to be on the same 12-12 cycle like indoors, and have been told that in my location they can begin to flower as early as August 7th/10th. I just don't want to be adding the wrong nutrients. Thanks in advance.

Just realized I put "begging to flower". Beginning to flower is what that should have read, but hey, begging works too I suppose.

Probably just per flowers

Think I should switch my nutes from veg to bud? Or wait until I start to see the white hairs on top of them?

I would wait