The chart I posted earlier I manually traded it with your parameters some weeks back, but I have one automated from two years ago and parameters are just a couple off doing actually longer envelope and Bollinger Bands in periods but just 2-3. Enclosed is main system I been manually trading for on/off 3-5 years, I get bored trading same thing, I don't change the parameters to any system once they are set, I just change to a different system, my staff prefers I stick to same system as they are doing one lots the entries, but regardless, both systems have many signals even though Dax, Bund, Soybean Oil, Rice, ES or any other instrument including stocks have different personalities. Good systems are robust in instruments and timeframes, but risk increases on larger timeframes on some signals. I have posted this parameters on other traders journals, so you are getting closer to what I consider one of the best systems I have ever designed.
BUT like a great painter or fairly good painter having same paintbrushes and canvas, each will have a different paintings. So many are afraid to show charts of what they do and yet no two people are the same unless you identical twins.
I never started in trading to become a scalper, matter of fact, day trading was the worst thing I should have ever gone into cause of personal conflicts, as soon as I had to get into back testing and testing years of data, scalping was fast, results were faster, I don't think right most of the time, I see/hear things from within, we all talk to ourselves especially during high stress, I am very very vocal, I become more vocal when I am doing well and grumble when I am not doing well. And I keep stats on this as well. We have normal in our lives and when you can have a stat on abby-normal, you might be able to have a nuance subconsciously about yourself and the markets. When I am thinking that some trade will pay for a Duesenberg, I know now the end of trend is nearly over. The Duesenberg usually start at $165k, they were produced from 1913 to 1937 till depression was in full swing. I have no intentions of springing $165k for an old car, but they are cool, am old fart.
http://www.wallpaperup.com/uploads/wallpapers/2013/07/17/119493/605a1bbc88f36c4081cf3f3642fd2078.jpg