I have followup questions, though:

If you’ve talked about the “magic of the 7-9” before, that would explain why it seems like you just brushed over that bit.

What exactly do you mean? How can you use a 7-9 outcome to “close a thread”, for instance?

We all know they’re great (“yes, but” is always an effective story gaming tool), but what are you talking about here, specifically?

A couple of examples might really help.