I wanted to lower the stem on my one month old road bike and noticed that the stem already left a noticable mark in the carbon steerer. Seems that the lower edge scraped into the material. Stem was always properly tightened and headset adjusted. I know that carbon is a much debated topic with a lot of panic and confusion but this scratch leaves me with a bad feeling as I would prefer to keep my face and teeth as long as possible.
Anyone know if this kind of damage is in the "to be expected" range? As a side question: When reattaching the stem I made a small scratch on the upper end of the steerer because the stem got jammed. Nothing compared to the big circular scratch, but would be glad if someone could tell me if that's ok (last two pictures).