For trend reversals, very simple. Look at the pic. All you need is to set the Center of Gravity to 10 months back or so on the dailies (240 bars). When price gets the heck out of sinc, you've got a very good chance things are turning around (past the green resistance lines). Not that this will tell you the future, but it's definitely a warning sign. This pic was taken yesterday or the day before, can't remember, but it's very recent:
I experienced something similar last year about this time (July) with many pairs and remember what happened?
Happy trading friends,