Nah, I've only focused on super-heavy class in my napkin designs.

I'm just facetiously pointing out that Starship hasn't launched yet. There could be major flaws. Someone else might have a better design brewing but with little to show for it. The irony is that Starship's design looks a lot more like the sci-fi futurism of the 50s - we're returning to it after testing out shuttle-style reusable vehicles.