I also have the VS VR4 Jr's. A nice improvement is to use Herbie's big fat dots between the bass module and mid/tweeter module. Something about better damping of the vibrations from the bass cabinet made the mid/tweeter cabinet image better. Worthwhile tweak for approx $80. Enjoy the music.
http://herbiesaudiolab.home.att.net/bigfat.htm
http://herbiesaudiolab.home.att.net/bigfat.htm