There is 2 i watch for is a ratio trade and pullback trade. The A to B impulse can be choppy at times. The pullback trade is off the 61.8 level and you need something at that level for a probabilty setup like symmetry coming down or up depending on the trend direction.(maybe a bounce off the 38.2 level) , trendlines. rsi ob/os,SR closed candle consolidation. ...a bounce off the 50 would terminate the setup according to the rules.
Ratio trade is similar to a gartley and you can usr the 50.61.8 78.6 and need several things to happen. Impulse leg . fib confluence like 127.141----78. 86--anyof these combinations.Symmetry right a these combinations or just shy of this.
Take care,Rob