Trimming the larger fan leaves blocking bud sites won't hurt the plant or your yield if you take it slow, say a few over the course of a couple days.
After 2 or 3 days, it will look like you never even trimmed them in the first place.
Did I read that right, you have 1/4 of your buds UNDER the net ?
Post a pic of under the netting.
At 3 weeks bloom, your stretch is pretty much done and ANY and ALL plant material not at and above the netting at this point needs to be trimmed off COMPLETELY !
If you don't, you're getting poor air circulation plus asking for uninvited pests to come feast on what will end up dead/rotten plant material due to lack of light.
It will also take away from your final yield bcuz you're plant is wasting precious energy and food on plant material that won't really be of any good to you.