Does anyone trade with risk reversals here as an indior of PA? Or , does anyone have any research they have any value at all?

I understand their the market's best guess of future direction, but they're not much use unless they really are predictive. So... bring forth the signs!

According to those academics:
http://www.ljmu.ac.uk/AFE/AFE_docs/cibef0401.pdf
... there's nothing in them. However, I maintain an open mind when they were sharp enough to detect something set up a fund and useful they would run off and because we all know academics could not trade their way from a paper bag.

Thoughts?