I find the best method of bud vs time is to do a sea of green, normally 25x 7L pots or 36 5L pots. Very minimal veg probably around two weeks for the 7L and 10 days for the 5L. Just cuts veg time down and allows for a quicker turn around.
When doing 16 I tend to have to top once or twice which adds recovery time on to the veg although I do like 16x 3 gallon pots and it works well.