In my opinion, for the majority of traders, it is best to place a simple price target based on price action/charts, etc.
However, traders always focus on that one insignificant (statistically) trade was a home run, and they took only 5-10% of the move or less. Or, they enjoyed the significant move, and now they try to replicate it.
This leads to "I'll max it out next time," and then from a trader, you turn into an artist of "let me try."
If the market is still trending in one direction in a big way, look to reenter and exit multiple times.
Even if you were stopped and the probability is in the trend, you should consider entering again.
I am not against SD, ATR, or % based stops because their logic is based on volatility. If it suits anyone's method, I can never argue against positive and consistent results.