Yes, how can this thing be so popular yet not even be able to slice properly in literally the only decent piece of home 3D printing software on the planet? If you can't slice properly in Simplify3D you shouldn't have uploaded the model, period. You are living in the stone age printing with anything else, particularly Replicator G or Makerware crap.
Blade A doesn't even come close to slicing properly. How I got around the problem is I mirrored the part about Y axis in Simplify3D by going to Mesh -> Mirror Mesh -> Mirror Y