TheTick:
I am going to show my lack of experience with Solidworks here, but I attempted to follow your advice and I am clearly doing something wrong. For grins I created a 3" x 3" x 1/2" slab just to play with. Then I opened a sketch on one flat face, created a sketch for a dowel-like structure, mirrored this sketch and then extruded. I now had two dowels on the surface. However, any time I try to use Insert>Features>Delete Bodies to attempt to delete the original dowel only, it considers my whole entity as one body, even though my dowels were Extrude2. (Extrude1 being the orginal 1/2 thickness). Any suggestions on what I am doing wrong?