I know here the sun goes down and then the moisture comes up. Not sure if that's the case for you considering where you live. I haven't raced outside in many years, but that's changing in a couple weeks. Back then we didn't have as many options for tires so it was pretty much M3 Holeshots vs Red X-2000's vs M3 Square Fuzzies (My favorite tire of all time btw ). Depending on how much sun was on the track, how dry, and time of day we swapped around. Since now we tend to over complicate and over analyze everything, I would think realistically you could do the same thing.