Yes. diagonal lines are dynamic. Horizontal lines are not. The indicator method with price action will show where the traders are trading and creating tops and bottoms. It may be different today than it was yesterday. That is one of the issues with defining a range for today's trading based upon yesterday's trading. I suspect that the SLA folks probably drew a line across tops that occurred yesterday and overnight at maybe around 4355, but as you can see the price/indicator combo lets us capture the reversal slightly above 4365. --Now it could be argued that the SLA would allow the trader to capture the upside breakout above 4355, but only for 10 points or less. I can easily show that a simple cross of a downward sloping diagonal line drawn across the tops of the pullback on the left side of the chart would have you in at 4351 instead of above 4355. If the SLA trader waited for the pullback of the breakout above 4355, then the entries would be similar. So yes---diagonal lines are dynamic in time and not static like horizontal lines based upon yesterday's noise.Isn't the slope of a channel limit dynamic since is changes over time? Don't the limits of the range tell us where we are in terms of current market activity? As in where traders are and are not trading?