Suggestion: Steelband and Titanband?

[Warrior]

Originally Jug made Ironman MAngband with one town at 1500 feet.

It made me think: Could we do harder Ironman variants?

Towns every 1500 or 2000 feet?

Steelband: 1500-3000-4500-6000.
would be easy compared to
Titanband: 2000-4000-6000.

Thats a real accomplishment!