Using the Sandbox to test out Leopard builds
 

Can I use Super Duper's Sandbox functionality to test out the current beta build of Leopard without screwing up my one Mac? Any developers out there who hav tried this and can say it will work, suggestions, URLs?

Thanks from a Windows developer trying to make the Switch.

I've heard of both successes and failures using the Sandbox with Leopard: I'd certainly not try without a complete backup!