My many years of stats are based on a 5-min chart with a 1-min cross-reference for entries and a 6-8 hour lookback window of which to draw trend lines when applicable (continuous thru the overnight session into RTH because I trade futures; if I traded stocks I'd look at the previous day). Therefore, what other traders use is irrelevant to me. Hopefully, they've done their own statistical analyses based on their foundation/framework for trading.
I would never place a stop loss above/below a break of a tend line. That makes no sense to me
based on my personal trading plan. I don't find a trend line reliable in any way for stop placement. I may look to enter based on price reaction to trend lines, but placing a stop loss above/below that line doesn't seem like a high odds method of exiting a trade.
I've never heard an Al Brooks sales pitch. Does he actually "pitch" trading? I wouldn't wish trading on anyone!
I simply read and studied his first book thoroughly (it took me the better part of a year to get through 3/4 of it). The book opened my eyes to so many valuable concepts that the book's real value to me is the equivalent of a degree from Yale or Harvard.