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I thought you might grow some civility.
Anyway in a rocket massing a few pounds EVERYTHING matters. DUST in the paint can sap 50feet on your peak altitude costing you the prize. Mass is also not much an issue with rocketry because we are almost ALWAYS below optimal mass so we tend to ass mass via paint to close in on optimal and have a cleaner finish (while we design the rockets we are limited by commercially available engines so we optimize for the engines)
I KNOW aerodynamically flat is better. I also know the edge of hubcaps are slight recessed. If you had read my post you would know this.
What I DO NOT know is how much tire flex there is near the rim. This will determine HOW close to flat I can make them and therefore HOW much of the pressure gradient I can eliminate. Tire flex also has NOTHING to do with aerodynamics.
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