Feature Comparison With Cubase 7?

You’ve been very generous. So I’ll bug ya one more time:

If one has Cubase -and- Nuendo, can one reliably open/save the same project with both programs? IOW: if I got Nuendo without NEK (because I’m cheap), could I work in Cubase for scoring and then open the same ‘CPR’ in Nuendo when I wanted to use the ‘advanced routing’? And then goe back to it in Cubase still later?

I would think not, but I figure it was worth asking.

Best,

—JC