I'm planning on using Tip's slaughterhouse poultry brine to smoke 2 whole chickens this weekend. May sound like a silly question, but if I'm doing 2 birds should I just double the brine recipe? I'm not sure 1-1/2 gallons of water will be enough to cover 2 birds. But I also want to make sure I won't be brining them to death by doubling the recipe. Thanks!!!