Castle Walls, Connecting Issues

While it's possible to connect a full wall around a lot there are certain pieces that cannot seamlessly connect to others without some configuration. For example, Corners, T-Walls, V-Segments and Gates cannot connect to each other without some configuration. A Corner and a V-Segment can connect, but only if the piece moved into the connection is the Corner because the V-Segment leaves an invisible gap between the two pieces. (Cannot move it to touch the coresponding piece.)

Putting together a full wall would be much easier if the pieces weren't like trying to stick together 2 magnets.

Edit: Also, can you make it so the Stairs can pass through the other pieces? Another issue that requires some configuration is that the stairs cannot be moved close enough to the wall without leaving a 'pitfall' spot between the two.

 

It's probably important to note I've only worked with the dark spiked walls from the store, so I can't tell if this is present with the other castle walls.