As for the slot loading mechanism used in the Innuos,
the slot CD loader of my beloved Meridian G08.2 made tiny abrasions on the CD’s surface, only visible under the light of a desk lamp. I sold it for that reason only (otherwise, it was an outstanding player).
Did you notice only the slightest similar abrasion on the CD’s polycarbonate external layer with the Innuos’ slot loader?
Thanks.