I think it is strain dependent for sure, however for me I like to tuck as much as possible and wont take any usually until two weeks before I flip giving them time to adjust alowing the plant to direct more energy to the canopy. Then after the stretch I will do a heavy trim and I like to lollipop them then I will wait another couple of weeks again depending on the strain then I will take the leaves I can't tuck that are blocking light to the bud sites. For me its an average of 3 trims aside from the pluck here pluck there I do as well.