I don't bleed anything like that. A few pinpoint spots here and there across my scalp. Check the top arrow on your derminator display above the arrow for the depth setting. It will show you the actual depth that the needles are penetrating. If that confirms your setting then you may need to switch to .5mm. You could be pressing too hard too. You don't want to cup the skin, just glide over it.I did two passes, trying to move the head of my denominator 2 approx 1cm every 3 seconds. So that gives me in total roughly 6 seconds per square centimeter.
That is 6 * 25 * 12 = 1800 holes. Unfortunately, as you see on the pictures it does not feel evenly spread the wounding pattern
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