Hi,

in blender you can select one of different shrink mapping options:

Nearest surface point, nearest vertex point, or projection to one of the axis (x,y,z).

I use the first one usually. The good thing is, it's real time! When you move the target, the projection is updated. Sometimes some points don't go where you want, in that case you can "apply" the shrink modifier and the new mesh is static then and you can edit / finetune the mesh.

You can also specific the offset (projection distance) to get a good compromise between tightness and no pokethroughs.

 

Best regards,

   Michael