The issue is visible in matcap here:
http://s33.postimg.org/io3wshnr3/ding.png
with the wireframe here:
http://postimg.org/image/hkjsgj33v/
What is strange is it seems that only the rim around those holes are actually touching the surface of body block- everything else is inset somewhat. Here’s a profile along the edge with the body selected and the body block behind in black:
http://postimg.org/image/eggit9htn/