New Hair System: Attach Hair Curves to Surface question

Hello,

I’m currently looking into the geo node hair system solution.

Currently I’m struggling with the “Attach Hair Curves to Surface” node.
I’m using “Duplicate Hair Curves” and to reattach the duplicates to the surface I want to use “Attach Hair Curves to Surface”. But if I do so, the nodes are moving to the bottom:

Any idea what I’m doing wrong?

Hair Demo.blend (900.6 KB)