Knocking the neck pin out is a challenge, as the impact during the removal process might bend the side collars out of shape and likely will break them off. The head (and attached neck portion) cannot be easily dismantled.
Hey, I just saw your photos on the whirl thread and noticed your real nice cyclonus in the background. Do you have a thread for him or more photos?
What changed did you make - he just seems to pop out from the picture.