ahhh, now most people think anthems are 100% TRULY, PERFECTLY symmetrical, which they are, but the given mounting lines ARE NOT TRUE CENTER!!!!! the suggested mounting lines are 5mm back from true center to account for boot flex. most people do not know this, so if you are going to flip you skis around, you will have to hand measure where true center is because if you just go with the line again, you will be riding about a cm forward of dead center, presuming you mounted the correct direction in the first place, which many people also dont. DOUBLE CHECK people, double check.