Watering volume

How do you guys split up watering so each plant gets the same amount. Especially when you're mixing 1 gallon jugs and the plants need less than a gallon. Do you pour the mix/water into individual vessels for each plant or just eyeball. I know it seems fairly simple but just curious on the consensus. TY

I have done both when I hand watered

same here, done both, but i personaly use a larger bucket, put a plant pot into it, and pour the water in and allow it to suck up the water first, then finnish off watering the tops. but there are those who frown apon it