[pcabc]

Regarding the 10 and 30 day EMAs - did you pick those for a reason, do they have any special significance?

There was a reason. But I can't remember exactly now as I set it up around 10 years ago. But I do know the McClellan Oscillator https://www.investopedia.com/terms/m/mcc...llator.asp is made up of the 19 day EMA and the 39 day EMA of the advance decline line data. So the 10 and 30 day EMAs that I use are just a bit faster and obviously tie in with Stage Analysis.

I think with things like these you could use any combination of short and medium term MAs and the results wouldn't be much different. i.e isn't the MACD a 12 day EMA – 26 day EMA for example.

I thought I had replied to this but obviously lost it when correcting something else.  I notice you use the McClellan, both the oscillator and the summation index in your breadth charts.  Do you find them useful? 

There might be merit in myself using these in by breadth scoring as at the moment I'm comparing the advance / decline line with various moving averages, the McClellan oscillator and summation index would make this a little less arbitrary.