Dislikedsorry Paul for jumping in here..
Royston,
its called expectancy.. price must go your way in a reasonable.. timetable, speed and rhythm.. it an a Art.. no set rules.. and don't worship anything.. #1&2 is just a guide..
once you get enough trade practises and thousends of hours of screen time under your belt, then you can distinguish the difference between playing which one more aggressively and which one to give more breating room..
This is not a system..
this is not based on x y z to happen in a strickt set of rules and structure to get...Ignored
$urvive, Pre$erve &
RESPECT THE TEACHER