Forget about the suggest line it's too confusing, 89cm from the tail is an Exact recommendation from Tyson Hall, Tanner brother, that is where JP skis tham that's where I would ski them. Just get a tape measurer and mark them yourself. If you must know yes it's 5cm back from true center but if you do ot that way it require two measurements and then their is more chance of error. As for the kids on this site complaining about alternate mounting positions, Armada lays up the graphics with the midsole mark already marked in the graphic for one thing so NONE of their skis are exactly accurately marked. It's all part of their small brand steeze, kind of like not having MSRP and MAP to go on so we have to sell them at their starting price, they keep us on our toes.