I use 40 to 80L pots
Plants are vegged for 1 to 4 months in 1L to 15L pots
Normally the sooner they go from a 1L pot to a 5/15L pot the faster they grow given a week or so to root up a bit, then I find getting them into the bigger pot faster normally always ends up with a bigger plant faster
I`d go 1L pots right into 30/60L pots after 2 to 4 weeks if I had the space but moving them around and such would be a bitch plus they would only need watering like once ever 2 to 4 weeks at 1st so that would be strange
I use 30/80L pots now days as my mate who looks after it is great at forgetting and shit at watering
I used to use 1L to 15L pots and water everyday even 6 times a day or more when I had a flood and drain
honestly with a 1L to 5L pot I can out yield what my mate would get in a 15 to 20L pot
but the 60L pots make him being a fuckup sometimes less of a problem
So yeah watering 3 to 6 times a day or running a hydro may yield you more, but for that extra work you could run a 2nd room of bloom and yield way more
So it all depends on your grow style and how much space you have to hand
The best thing with bigger pots is you can use more pebbled or perlite ok you have to water a bit more but you get more roots and can normally still keep it under 3 waterings per week for a 300g to 1kg+ plant now that`s easy buds
Also bigger plants can help keep soil/coco pests busy