The benefit of this kind of outlining is that you discover a story's flaws before you invest a lot of time writing the first draft, and it's almost impossible to get stuck at a difficult chapter, because you've already done the work to push through those kinds of blocks.
I got up with my wife, I sat down at the computer when she went to work, and I didn't stop until she got home.
For the novels I wrote before selling anything, I didn't outline much. I had a vague idea of the story.
I'm a fan of short horror fiction... in fact, the most memorable horror I've read is of the short variety... but I have a hard time pulling it off myself.
On the other hand, now that I'm not dependent on fiction for my income, I've been writing more short stories despite the fact that there's no real paying market for short horror other than Cemetery Dance.