Hello. Yes, I always trim them up before the 3rd week of flowering, before the resin starts.
I concentrate on removing sucker branches, bottom fan leaves that don't get much light.
I also remove "some" of the fan leaves in the middle for better air flow and better light penetration to the bud sites.
Remember it you remove more than 1/3 of the leaves you'll send the plant into shock. But sometimes you have to.
Once the plants have recovered they will go straight into resin production.
Then leave them alone till the end, but you can remove a couple of fan leaves if they get in the way.
You'll get good results.
Chuck.