Adam Mancini definitely worth a follow on Twitter for anyone one on here.
I think he also uses volume profiles. He's alluded to it it here and there and also said that he won't share that as it's his edge etc.
Interesting you say imaginary lines. I'm not sure that they're always imaginary but definitely subjective and dependent on various chart scales and futures (continuous or otherwise) and/or cash markets and where those lines end up!
Bottom line is you're absolutely right about having a system that works for you. He's the best I've seen in this respect. Nothing to do with predicting the market, especially longer term calls around '6400' here we come and that type of thing. Truth is no one really knows and certainly don't know the path or the timeframe if it does get there.
what he does say is markets spend most of their time in 'chop' mode rather than trend mode. And he's tailored his approach accordingly. Taking advantage of level to level moves that occur each and every day and not getting crushed by the sudden violent trend moves.
(20min delay)