I don't think anyone has spoken about the difference when closed. As far as looks open, I like both equally. For cutting, both always work great. However, the drop point looks so good closed. The blade plunges down into the handle to disappear. So little peeks out, very sleek. The insingo is chunky looking closed. Since they are always in my hand or pocket the hunch back insingo is hidden out of sight.
I do own about 3:1 drop:insingo
That's down to no damascus insingo.
I would pay $1k for a vanilla Damascus Insingo Sebbie. It is a grail knife.