Came across this indicator. Quite neat - It's a bit of a slog reading through it all, but basically he's combining a Money Flow indicator and statistical ranking to determing potential trend changes.
Would be a handy indicator for swing trading - Have knocked it up in AmiBroker language, will upload the formula tonight if anyone wants it. No reason I guess why this approach couldn't be used with your indicator of choice.
I doubt I'm breaking any sort of copywright with this, but have looked through it and see that it's easily accessible in more than a few places on the web. Respect where it's due, Clive Corcoran is the author, and his book is here.