Soil indoors, through much trial and error, picking up the pots to see when to water is the only way to go. Can't go by routine, each plant can be different. So easy to just lift upward on the pot and you'll know immediately if it needs water or not. I'd only bottom water near first watering as the roots are still fragile and let them suck and search, but developed roots only get water from the top, they will always have water to suck up as runoff. I use 7gal and 5gal pots in the same grows for years, side by side with the same strains (not clones, always seed), and can't see much difference in results between 5 and 7 gal. However, i'm using 600's not 1000w. 1000w can produce much plant!!!!