This track is so near to completion, but I have one or two hassles I'd like to have sorted before release. The FPS is great during practice, but after a while (30 minutes) it becomes jerky, a constant jerk, not a sudden drop in FPS in sections. I'm not sure if its my machine, the model, or the different sun angle that is causing it. When driving and the FPS is jerky, I look back and the graphics are smooth. Is it maybe something to do with the cockpit? The one other thing. I wish I knew how to unpack a .gtr or .gtl file, so I can get Woochoos crowds, he has allowed, but I do not know how to get them from his project. Mine are all 3D crowds and it hurts FPS.