I currently have the skull mounted on the 5/16 shaft of the bucky. It sits a little far back.

I have read that you should mount on the smaller shaft in the front of the5/16 shaft.
but wouldnt that mean the 5/16 shaft would go in the rear hole of the skull?

the rear hole has the wires coming out.wouldnt it be a bad idea to try to mount onto that shaft. wouldnt you run a risk of damaging the wires?

Anyone here have some advise or share what they did.
thanks