Long ago, a friend told me that a surprising amount of the time, a Stochastic "Sell" is actually a sign of strength. While that's true enough, some Stochastic settings are good enough that I'd not want to fade them very often. Still, there are times.
So, here's the tip: take a look at your more favored stochastics (or, if you don't have any, take a look at a bunch of them until you see one that looks like it works really well. Now, look for "sell" signals that are generated from flat or even up markets. Many times (most times), you'll get another, substantial run higher after getting one of these "sell" signals.