Can this training Order Flow drill be used as an actual way of trading the markets? Is it sensible and commonly used?

I am still only demo trading learning to read OF and in certain thin ES days C&R is what makes me more comfortable.

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sylvestersergio 

Can this training Order Flow drill be used as an actual way of trading the markets? Is it sensible and commonly used? I am still only demo trading learning to read OF and in certain thin ES days C&R is what makes me more comfortable.

Given that is a drill published on Peter Davies' website, how about asking him in his AMA thread.

Lol seems like I'm not the only one thinking about doing this.

I did it a few days on the ES + watching the other correlated instruments and got a few green days.

the DOM is soo underappreciated in trading. I wonder if it is because it's the most difficult tool to read.