Volkl bridge binding mounting for park skiing

Hi! I own Volkl Bridge 07/08 skis and I want to ski them mostly in park in the future. Can someone tell me if i should mount them - 10cm from real center or i should move them a bit foward.... for egzample -4cm from the center ??

Guys please help. I really need these information!!!! 

The more park you want them, the closer to center you should mount them, but keep in mind that they are a directional twin tip, they aren't symmetrical like the Wall. I'd set the binding back a touch, like 2 to 4cm behind true center... or just use the forward mounting line on the ski.

ok. It will be mounted - 4 cm. I think that the forward mounting line is just too far (-10cm). Thanks man!