Raycast Skeletal Mesh

Hello,

I have a character with morph targets, and I want to get a point in the mesh surface of the character (after morph modifications) to set IK’s for the hands.
I am trying to do this by raycasting from the hands, but I have only managed to detect the physical asset of the character instead of the mesh surface (even if I set “Enable Per Poly Collisions” to true);

How can I do this?

Thanks in advance,