>I think many folks here are recommending against FormSets without understanding them.

I beg to differ. This comes from experience. But defintely I am open to other ideas.

>Certain things, like sharing a private datasession among forms, are impossible without them.

Another modal form can share a private datasession of another form.... but I think it is best for forms to have their own private datasessions. They can then pass parameters back and forth.

>I have a slick process here where processes having private datasessions all need to call a common report specification form. Using a FormSet I can AddObject the report specification form class at any time, and it's then a full participant in the calling process' private data session.

Intesting. You should post an example.