Prepare the wings by cutting through the joint to make 2 pieces. Snip off the tips. Put the wings in a shallow glass or ceramic dish. Combine the hoisin sauce, soy sauce, ketchup, vinegar, lime juice, sugar, garlic, ginger, and chile paste in a small bowl, and whisk well. Brush liberally on the chicken wings, turning them to coat both sides. Season with salt and pepper, to taste. Cover, and refrigerate for at least 1 hour or overnight. Prepare a charcoal or gas grill. Lightly spray the grill rack with vegetable-oil cooking spray. The coals should be moderately hot. Grill the wings, turning with tongs 3 to 4 times and brushing with any remaining glaze during the first 10 minutes of grilling or until cooked through, 15 to 25 minutes. Serve immediately.