scrog q

hi
i have 2 plants, in scrog, just transfer to flowering. my q is when and how much do i need to trim beneath the screen? also she's very very bushy, u cant see the soil through the leafs, all u see are leafs and leafs . should i trim some of them also or its ok
thanks

take bottom 1/3 of foliage. let it recover, and then prune up to screen. don't do a little bit at a time; it'll stunt.