something of interest?

I've been taking an interest in day-trading forex and found, what appears to be, an interesting possibility for determining long entries, an example of which is shown below....


dl.dropboxusercontent.com/u/7238706/USD%20Spot.png

...... only get interested on a bullish divergence of the stoch; then wait for the price to exceed the highest price that occurred during the divergence before entry. The stop would be the low of the divergence.

If anyone's used this in the past, or can shoot holes in it, I'd be interested to hear?