I made minor modifications, and added a zero line and changed some values. I use this indicator differently then it is intended to be used for scalping shorter time frames (15 min - 1 hour).
I use it like a cross over, either from the zeroline or when it passes the RMS , for 5-10 pips. While no indicator is 100% this one does a nice job for small scalps.
try it out on a demo and see if you like it.
original Indy -