In relation to a Stop-Loss:
* One can be placed directly under the reversal-candle that initiates the trade.
In the example above Silver-hourly chart, you could drop to a 15 or 10 minute chart to look for this surge in volume &/or a reversal candle (for example Pin-bar & Engulfing)
* Wait for this reversal candle to close in price on a 15 or 10 minute chart, then when you know that's your strong reversal candle, sell(standard Selling pattern) or buy(inverse H&S pattern) as soon as you can when the next candle starts to open. Your Stop is right under the reversal candle. This is more aggressive but giving very good Risk/Reward.
* Alternatively, a Stop could be placed under the Right-shoulder or very conservatively a Stop could be placed under the Head of the structure.