If not mistaken, Dan Zanger used chart pattern. I have not read Larry's methodology. Anyway, in regards to charting, high probability the edge is not robust. It works best on a market condition.
Dan Zanger bought the most liquid, tech and internet, stocks near breakout during the late 1990s tech bubble. You’re right, what made him was the tech bubble. But still … He’s remembered as the most successful trader of that era as he turned 10k into 10M in 2 years. Had the right strategy for the right condition. Everyone knows it’s silly to buy breakouts within a bear market.
Have you read Momentum Masters?? Hes one of four Momo guys interviewed.. Of the 4,he was clearly the most "aggressive " and lucky to have not gone the way of the dinosaur.. Definitely worth reading
If you are a Canslim/Momo type trader,uts definetly worth reading.. Its a Q and A with Minervini,Ryan,Zanger and Ritchie...