Hi Allen, what I and some others do is look at the ZigZag analysis on stockcharts.com and try different ZigZag percentages until I get enough points over a long time interval like 5 years or so. I then set my Sell and Buy Safe, minimum trade size, and stock value so the hold zone matches the ZigZag size above.
In general with ETFs the 30% hold zone of AIM BTB is too large to result in enough trades.