Sickbird Alpine Mount

I have some 178 Rossignol Sickbirds I want to mount alpine. If they were Scratch BCs I would mount demo bindings on the all mountain line so I could go forward and back from that. But I do not know where that line is. Can someone measure the distance from the tail to the all mountain line on a pair of 2006 Scratch BCs? On the sickbirds there is a tele line at the center of the running surface and a randonee line a few cm back from that. Perhaps the randonee line is the same as the all mountain line on the Scratch BC?

Rossignol has replied to my inquiry about the mount point saying that the randonee line on Sickbirds is the same as the modern line on the Scratch BC. So my problem is solved.