Statistically in my trading, it's triggered not more often than in 5% of trades, so given accumulated profits I feel relaxed.
It might look like kind of SL, but I'm more comfortable with such approach and have more visual control.
Also, it requires more work to be done and attention to situation development to avoid 'wrong expectations traps'.
I use standard SL only in about half of trades and both ends hedging in other half.
It's purely matter of taste how trader protects himself against infavorable scenario development, but I can't put enough emphasis on risk management importance.
