There are grey areas in what determine a good Pinbar/Tailed bar in Price Action Trading.There must be a good defining feature that give clue for a good pin bar/tailed bar.
It is extremely difficult to ascertain if a PinBar/Tailed bar will be successful because of Random distribution of wins and loses. Discretion is required.
The basic defining feature for a Good pin is protrusion.A good pin must protrude from all the surrounding price Action.
From the example below , we can see how effective is a Pinbar/tailed bar.
A good Pinbar Must stick out from the surrounding price Actions on the chart. Sometimes, they can be a clue to large directional changes when they occurred on a key levels.
Trading Tailed/Pinbar formed at key resistance or support is a good signal to trade .It increase the odds of winning.