Niiice. I love the shadow play being cast into the center of the intersection. I always use the default values to start with then adjust from there, rather than just start with values I'd pretty much guess. It should be pretty obvious why Oh, and did you set the spread angle?
The leafs where mine. I didn't know source bugged about 4. Those physics props in the log I noticed, but didnt fix. I thought about turning them into cyclers, but i thought id just leave it for someone with more knowledge.
This is turning out sick, now I can't wait for my second pass!