market profile not a stand alone tool. They try to use too much of it. It has about 10 different variations that are useful.
But low/high volume nodes do not always work. They do not provide much statistical evidence for confirmation either.
One thing i like about Rob Mitchell (world cup winner) he uses stats big time.
I back test thru seeing it in charts over and over. If i see it work 85% of the time on old charts and multiple charts i know that my odds are very good.