I chop mine down whenever they are ready, and not before.
I quit watering and turn off my light ,and leave them in my tent 2-3days before I chop them down.Then they going in brown paper bags for several days, then in jars ,that I check regularly for a couple of weeks.
I ain't no plant doctor by any means, but I do believe that keeping them in the dark, helps a good bit, as far as trichs are concerned.
But everyone does things differently. lol