Smoked BBQ Pork with Watercress Salad

Name: Smoked BBQ Pork with Watercress Salad
Ingredients: 1/2 cup (125 mL) soy sauce; 1/2 cup (125 mL) orange juice; 2 tablespoons (30 mL) grated fresh ginger; 1 garlic clove, minced; 2 pork tenderloins; Freshly cracked black pepper; 2 handfuls of hickory wood chips, soaked in water for 1 hour; 1 cup (250 mL) water; 1 cup (250 mL) ice cubes; A bunch of watercress, tough stems discarded; 1 shallot, thinly sliced; 4 hard-boiled eggs, chopped; Maldon sea salt and freshly cracked black pepper; 2 tablespoons (30 mL) mayonnaise; 1 tablespoon (15 mL) Dijon mustard; 1 teaspoon (5 mL) honey; Juice of 1/2 lemon; Salt and freshly cracked black pepper