The 2 heads that came with mine I cannot get the post out of them no matter how hard I try. Has anyone else had this problem? I have even tried using pliers but no luck.
That's awful! This may sound dumb but did you wiggle it back and forth? Here is how I take mine out. Maybe it will help? I screw the head into the base so I have more to grip. Then I grab a kitchen towel and have one layer of towel between my fingers and the base. I hold on tight then grab the opposite corner of the towel and have one layer between my fingers and the post. Grab hard on the post and wiggle and pull like mad until it comes out. I use a lot of wiggle.
Maybe someone else has a different way.