If you are hunting in an area with other hunters (like the marsh in Ladner) the Mojo - Robo duck is a must. We didn't have one at first and found it a lot more difficult to bring the ducks in because most other guys are using a Mojo. If the other hunters in the area are using a mojo then they have a huge advantage. Calling is a huge advantage but is not easily picked up. Start with the Mojo and learn to call.