There is no single choice when it comes to one's preferred racing line. Many factors contribute to what may net you the fastest time, but one thing is for sure, knowledge about your options will guide your decision on how to race. Here is a short vid that examines the different approaches taken by Hamilton and Vettel during the British GP. I wonder if GTS could provide some level of depth that includes post-race analysis to give guidance on driver progression? Disclaimer - it's a short vid examining only 1 corner, but helpful if you are chasing that elusive 0.1sec.