I have put some more time into Deep Forest today, and put together an update.
-added a lot more trees
-remade and retextured the two existing tunnels and placed the two backstretch tunnels
-placed grandstands after the backstretch that I didn't see the first time
-rerecorded the pit LP in an attempt to make it work more accurately as well as moving the merge point back 100 meters
-added the banking on the inside of turn 1 and after the backstretch tunnels
I really wish I had a better object to place tunnel roofs with.