I like the graph you shared and agree with what it's saying, but one thing to note about the graph is that it's only addressing changes in rebound speed. All other factors are held constant, i.e. rider weight, spring rate, compression damping, trail conditions, outside air temp, trail speed, riding style, etc. So, if you assume all of those other variables are constant, then this graph will help you understand how to view rebound setup. But as we respond to your original post, the hypothetical you're asking about specifically refers to changing trail conditions and trail speed, which means this...