I'm doing some benchmarks with different Shadow settings and found that of you don't delete the SHADERS and CBASH folders after each setting change then the Setting doesn't work correctly. I.e. Start with Low then change to Medium and there is no difference, delete those folders and rerun the have and you can see the difference between the two settings. Not sure if this is by design or not, but people may think they've changed this setting in game without noticing it's failure. Tested at Monte Carlo official track with civics.