Note** The two holes on the outer portion of each Sportube are not meant to line up both holes at the same time with holes on the inner rib. They are staggered by design to give you smaller increments of adjustment, i.e about every ½” rather than every 1 ½”. Having the tip and tail of the case as tight as possible against the tip and tails of the skis, reduces any chance of movement within the case and therefore reduces the risk of damage.