Product review (5 stars): Work around for removal!
If for whatever reason, using the screw driver to hold the base from the bottom doesn't keep it steady, the alternative method is to remove the base cover.  Take the rubber feet off and remove the four screws.  I recommend using a small vice  grip and hold the center.  Yes, the plastic part that you will be removing turns clockwise for removal.  I got frustrated trying to hold a screw driver and trying to twist on the other end at the same time.  Use a vice grip and a pliers and save yourself a headache.  I give it a 5 star because the product obviously WORKS and is better than the original.