I am concerned about that but NRCS specs want less than 50% canopy. I left as much as I could. I may wait 2 years until 1st burn so I don't thin anymore than I have. Trees will have adjusted by then and if the fire terminates some the remainder should be okay.Be careful when releasing your white oaks, that you don't leave them too bare if they've been shaded, otherwise they won't survive. Leave cover on at least 60%. If the tree's haven't had full sun they will die from sun scald if you leave them bare. I lost a beautiful white oak in our last TSI because we cut too hard around that tree.
On second part I'm going to girdle/treat more trees instead of cutting to reduce fuel load for first fire.