It might be important to understand the reasoning behind this approach.
Basically this strategy takes advantage of a peroid during which a currency (GBP in this case) goes from low to high liquidity. The box in this strategy is the product of stops getting triggered at the upper range and the lower range. Once liquidity picks up, the momentum breaks in one direction (unhindered by any stops that may have been placed before the lower liquidity peroid).
Basically this strategy takes advantage of a peroid during which a currency (GBP in this case) goes from low to high liquidity. The box in this strategy is the product of stops getting triggered at the upper range and the lower range. Once liquidity picks up, the momentum breaks in one direction (unhindered by any stops that may have been placed before the lower liquidity peroid).