I have actively used this both for fast moving volatile trades and some long standing intraday trend based trading/investing.
It served as my light to guide me to a very sizable 500% margin in 8 months. Some days I traded heavily with some quite sharp and clear stop lossing using EMA X/EMA 2.1x. Some periods I load balanced and some days I walked away, in fact the chart looked so bad a few weeks ago, I didn't trade into bitcoin for 2 weeks, it was volatile and down trending. I made a lot of money on these "short" trades.
I feel that some days/weeks the market can be ranging too finely to show a profit with the extra slippage caused by volatility and other bots. So then I just switch EMAs longer.
This is one of the good strategies for long term effective decision making.