I actually think the idea has merit IF you are utilising Dusty's strengths; one of which happens to be his long kicking.
Having him on the HBF and seeing him chipping it around from one flank to the other is not taking advantage of his strengths. Actully the opposition would loving it as it isn't hurting them and it gives them time to set up a wall
If you can get the runners actually bloody running HARD and have him deliver it long to a player in space then it works but chipping, zipping and having him playing kick to kick to kick with the others back is the waste IMHO