I would like to install the post in between the flippers for Mousin' Around. Currently there is a white plug where the post would go. The plug is stuck in there really well. Does anyone have tips for how to get it out. Also, in the manual the part number for the post is 02-4003. This post is threaded like it would screw into threads in the play field. There is another mini post 02-3905 that is more of a wood screw. Does anyone know if there are threads in the play field for the mini post?