Hello. I also have a problem with the bro-science term that has been used for about the last year, on this page.
Doesn't explain anything. Just make it look like you don't like Bros. or that bros are stupid and don't know what they are doing.
Could you give me a list of things that are under your Bro-science banner? Just so I know...
My advice, is to look at the answerers "grams per plant" before you take their advice on this subject.
Yes, I trim/prune before the 3rd week of flowering is over. I take any sucker branches off the bottom and any big fanleaves that are blocking light.
I also clear up the middle fanleaves, for better airflow. better chance of not getting mold.
If you take anymore than 1/3 of the plants leaves off it will go into shock and not start regrowing till it's healed. 3 to 5 days.
Then leave it alone till the end.
Good Luck.