Hi, New member first post. Like a lot of you I've ordered a set of filters for the P4 Pro Plus and unable to remove the stock nd filter looked here for some help. While there are lots of suggestions none worked for me until I remembered I have this "soft jaw" pliars and removed the filter in a minute. Like everyone has suggested, pressure is not your friend on these aluminum rings so I gently put just enough on the jaws so they would slip sightly and after a couple of rotations, came right off. I got these at GarrettWade (if you're a tool guy you'll love this website 
)
) 
