As I understand it, the way to get the mag release working more easily is to keep using it and it gets easier with time, I'm not sure that starting over with a new mechanism would improve things in that regard. It doesn't seem like it would be an upgrade to go from ambi to one side only, but maybe the design is easier to push the button on. Also, the original mags will not work with the newer mag release, as the holes in the front of the mags were changed when they went to the new system. New mags will work with the old, but not the reverse.