hey,,
yeah you kinda have it right, during veg i water 1 every 3 days say,,I thought you ment wet/dry as in for veg have high humidity and then have arid(dry) for flower,,cause thats what I do.
But on your watering front I actually water once a week in wee 3inch pots, then like i say bout once every 3 days in 3 gallon pots,,and so on.
However there is no such set way to water as different strains seem to use different amounts of water, and every environmental factor affects how much water a plant uses, a good way is when you transplant feel the weight of the pot with fresh damp soil,, and when it gets light water. Like i say many different ways,, a tip is to add a drop of dish washing soap,the liquid stuff, to the water/nutes as it helps water penetration on dry hard soil.
Dont worry you'll get watering down,,if you are really worried buy a moisture detector/probe and use that. I got one for under£5,dnt know exchange rate or that,,,anyhow take it easy and good luck.