Thin more than you think you need to. Leave the fans alone, take out popcorn bud and full inside limbs (with fans). Taking it out once, severely, sets you back less. Your plants are so big you need to knock them back. Best of all for the most part the more you take the more return you get in your main colas. It balances out.
What is your humidity there? I run 10% so I never worry about PM (unless it's systemic). But if you run a normal humidity (35% or greater) you have got to really reduce the bulk or we maybe having another Hy Pee incident
and I think we all would all appreciate avoiding that again. If you have high humidity ask the guys who have to deal with that how/when to use a dehumidifier. I don't know.
I still learn from every grow. They are weeds after all so we can't do much wrong. Your plants look great so far you've done nicely.