Preheat grill for medium to medium-high heat or 250 degrees F. Remove wings from marinade and place onto grill. Cook for 5-7 minutes, turn, and cook for another 5-7 minutes. At this point, start basting wings with reserves 1/2 cup of marinade. Cook for an additional 20 minutes, or until wings reach an internal temperature of 175 degrees F. This will allow them to crisp up nicely. Leave them on a little longer if preferred.