Your system is coming right along. I like the first graph very much. The second graph, does it use the same timeframe as number one? Going back to Magna's words on timeframe determining noise...possibly a way for rethinking number two and for thinking more about stops and targets. Rethinking on graph one...using a smoothed moving average...Kaufman's efficiency ratio doesn't work well on an intraday time frame...you need another filter that is widely adaptive...Donchian's moving average crossover works pretty well. It provides a histogram much as MACD would; but also, gives a graphical polarized filter so you can see immediately whether to be long or short based on the moving average. Although the picture is 100 ticks per bar I still used a short moving average of 30 and a long moving average of 172 to create the indicator. Maybe it will help. Bruce
Intraday ATR on the same timeframe that you're trading from, taking into mind your maximum acceptable drawdown based on account equity size.