Hey Hive account@msandry. He mentions it in a few videos. I think he mentions it in here https://steemit.com/trading/@quickfingersluc/daytrading-vrs-position-trading-which-will-make-you-more-money I haven't checked again. But it's the points where he draws the average cracks and then compares it by eyeballing it without actually measuring it.

I hope it helps.