That works just fine...
...I was cryptically referring to X-33's shameful design cock-up. That really didn't work due to the limits of the materials and the technical know-how of the day. Not sure if there's better materials available yet, but sheets of nanotubes will be available with sufficient strength before too long. Only problem is that the X-33 was a design in need of a real mission. The DC-X concept would've allowed Luna landing missions without much modification at all. Better options will be fully reusable multi-stagers like the Falcons or air-breathers like SKYLON.