when I do counter-trend trading, I use intra-day support/resistance as my overbought/oversold indicator
normally the market is in an range or in an consolidation phase.
you may take an example of sweetcrude's 3/23 intra-day chart
in other case, I use the distance between my EMA and the current market, if 1'minute chart, in crude, 30ticks+, if 3 minute, 90ticks+, in matter of fact, I just use that for quick bucks, catch a big trend's counter-trend little pullback move,then quickly flip over to catch the big move.for newbie, better avoid catching the counter-trend littel pullback move, you need be fast fingers, very risky if you hesistate