Alright, on my wall, I have a glass brush with brush work behind them. It's causing a lot of unecessary visleaves to be created. I cannot make the brush work behind the glass a func_detail as it would cause leaks. I cannot make the faces with a skip texture as I would of course lose the current texture I have on the brushes. I tried to make a skip texture brush around them to see if that would prevent visleaves on that area, but it doesn't. So then I tried putting a nodraw brush around it and it does seem to be preventing a large portion of the unecessary visleaves, so do you think that this is a good way to go? My only other option I can think of is to spend a lot of time creating brushes behind the brush work and making it func_detail, unfortunately that would take quite a bit of time with how my map is.