Not Luc, but I can try to explain. He buys panic drops, which usually means a few red candles on a hourly chart. I am not sure how I would classify minimal cracks of the base, but almost certainly those aren't worth buying(For this method). Look at 10% drop as a minimum or so. SHIFT click in coinigy.
In the most basic form if I understood correctly:

1. Look at chart in a context of one or two months with hourly candles.
2. See if the price bounced from below last cracks.
3. It's best if the coin has high volume(maybe 100 btc?).
4. Buy once you see a panic(significant drop in price, 10%, few red candles usually).
5. Sell at first bounce.
   You could and probably should layer in buys and sells, but there are no strict rules.