This is interesting.. .somehow the kind of swings that we are seeing makes me wonder if its a result of Algo trading... most of the massive jumps in trading have been at well identified S/R... but previously we wouldnt swing back this violently... somehow looks like at key levels all the orders came rushing through.. maybe what you have been successfully following is one way to beat the algo traders..join the party once the S/R's are broken for quick gains
Similarly, I feel drawing channels (and other technical tools) helps us to find the most probable area of where the price would fluctuate in a given time period.
Its more likely to be in the channel than outside the channel until the trend reverses. I think that is also the basis behind which John Bollinger devised the Bollinger Bands; to find 95% of the price action within the bands.