This is not the chart I'm using. This is an older chart, which I tested for angles. My daily and 60 min are updated. I am publishing this so I don't lose the chart. I keep getting charts overwritten and losing them. These angles were tested on the chart and set up by finding Right diagonals. They are very precise. If you want to use the small toolbox ones, on the upper part. Just click extensions. They are accurate. There is one more angle I found happens on the chart a lot. It's a fast angle from tops to bottoms for the medium to larger moves.
With great difficulty. Just draw trendline from the top of the medium moves to the bottoms, then from the bottoms to the tops. Then look for long term trendlines. Next, drag the trendlines across the chart to see if they repeat. When you find good repeaters, use them. That's not how I did it, but the angles that are on the chart are the safest way to calculate the angles that should be used. They will repeat. It's all based on geometry and specialist set prices.