Thank you

What exactly are billboard trees compared to the others? What would you say are the most important graphics settings to change for better FPS on more demanding courses. What settings do you guys have to have on and which ones do you find are not worth the trouble. Do you have must be on settings for ...

I've signed in with my steam account on Perfect Parallel and tried to add Royal Troon but it keeps saying steam is reporting an error must add one item. I see the course in my course folder but it doesn't appear in my carousel. Any help would be appreciated.