Yeah, I would also only water once, as needed...water only enough to have a trickle out of bottom, or what I like to do sometimes is to water from the bottom up, by just placing the amount you would usually water in a container of near the circumference of your pot (so as to not have it spread out) and let the pot wick the water up...if there is a few ounces left after letting it sit for several hours, I pour it on top. My plants seem to really like this, and it seems to encourage rooting to the bottom, which I want to see before I through them in to flower...if you are using a large pot, I am not sure if this is the best though as I think it may not utilize the soil in the upper root zone it the opportunity is there to go down and out...then the roots tend to "spin out" around bottom of pot and do not naturally like to grow up...with that said, with a big (5-7 gallon) pot...who cares! For me this is a waste of soil and sqft as I am limited in space. I go from a small cube of rockwool (for cuttings only) to a beer cup...to a 5" 2.6 liter square pot...to a 6 liter pot 2 weeks or so before flower. If something goes wrong, I do not end up wasting good soil.
Also if you are using big pots...careful to not over water!
Do what works for you, and learning from your experience is the best. Your strain, environment and methods are all unique, so what works for one may not work for others...some very respected growers swear pH is critical and check it neurotically...others NEVER adjust pH...and municipal water changes seasonally and with environmental pressures...as well as often times multiple sources.