Kristin dropped off her Salomon skis for service. They seemed to be called Bamboo which I guess reflects their composition.
Good looking, nicely understated skis but unfortunately the true bar check indicated that the bases were seriously concave:
That strip of light wants to be thin & consistent width not big in the middle and small at the edges. However the bases and base edges were in excellent condition so it seemed a shame to batter half a millimetre off them both before they were bashed enough to really need it, so the bases were left alone. This time anyway!
If you are wondering why base flatness matters the primary concern is the base & edge angles are both referenced from the base, so a bulging convex base will give higher base edges than the edge guide reads and vice-versa for convex. In theory you should also find that convex bases seem to need extra angulation before the edges bite, and concave bases can seem a bit grabby, especially when you doing something that needs bases flat to the snow like being dragged up a Poma button lift. the exception to all of this is wide, all mountain tips which Atomic at any rate says should be slightly concave. They don’t say how to achieve this if they have lost the concavity mind and I don’t know any tools that could get it for you.
Usual edge & wax job and here they are all shiny and ready to go again. Just watch out for hungry pandas on the slopes.