if the wraps touch each other, dont they short out ?
No, wraps touching each other will not short out as long as long as they do not touch any part of the atomizer besides the positive and negative poles. The electrons still have only one path from the negative to the positive post. You can see in my pictures that my wraps are touching and when fired light up like one solid mass of wire. This build has no hot legs.
For more information see this thread:
http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/416271-micro-coils-increase-vapor-flavor-th.html