Replying to Backland 109 mounting point

I'm looking at picking up some Atomic Backland 109's in a 189 length and I'm not sure where to mount them. I won't be skiing them switch that much, but I am thinking of mounting them forward as i like a little bit of tail to work with and I want to make them ski a little shorter. I've heard recommendations that the Automatic be mounted about 2cm forward from recommended, so I was thinking somewhere around there, but I'm interested in other opinions.