Question to you A7 users. Have you been able to spin the posts at all? Mine are set up with the holes pointing in in completely different directions, making for odd coil shapes and long 'legs'. Not at all set up like the Chalice posts where the holes line up for an evenly centered coil.
I half heartedly tried to spin one but it didn't budge and I didn't want to force it too much.

Does yours look like this?
i thought it weird at first, but after i made the coil it made sense... maybe you just fed the coil through the wrong side?
and yes the posts do come out... take a paperclip feed it through the hole and spin the post, but if you manage to snap one i am not liable...