Examining the market since the bottom at 64, I discovered that trading the 14/21 DEMA crossover on the 4 hour chart would have been quite profitable. I have been using this crossover to trade since 8/26/13. I don't trade with bot, and usually wait 2-6 candles after the cross to implement the trade. Sometimes there are false positives so I wait to see if the trend will continue in the 12-24 hours after a cross.