the theory tells yo to care only about 1 or 2 last bases(unbroken i assume) in 2 months zoom out, and to trade panic sells. But it is your choice to trade any crack or drop you see sufficient. I am not sure how you would go about calculating your probababilities.
smaller bases are useful for daytrading where u can zoom in on 2 weeks or less chart and use 5 or 15 min candles for buying dips below these bases.
position trading relies on buying below major breaks and waiting for first bounce that almost retouches the previous base/level.