That depends on how you train them 2 foot of foliage above the net won't let must light through but 12 inches or less above you will get some pentatration.
And I agree with shed. The nugs you get will all be much more dense, but I'm not sure it necessarily increases yield. The lower fans contain a lot of stored nutrients that buffer and deficiency or lockout.
This all doesn't matter much since your canopy is so dense and lush!
I would just me mindful of overly dense areas over the next 2 weeks. Unless you have some good circulation. Then don't even bother... They can handle quite a bit of airflow in flower! So let them have it .