I shite myself every time I have to defol. I really don't know why because these fuckers just keep growing.
Qb
Remember, you're in "veg" right now. Once you flip to 12/12 then start counting days. I defol pretty hard, wait a couple days and flip the lights. Will defoil around day 21 getting rid of everything below the first trellis. Usually do 2 trellis. Selective defoil after that. Basically for blocking buds and general light. Just what I do. There's a million and one ways...
Looks like you are in small pots, so may want to flip. Once again, just my 2 cents