Still, one would think that this would be applicable to only seating
position, in your case. Is it worth it? Who knows? Don't forget about
the
400 dollar volume control knob!

In my car, I think it is a must. At normal listening level I do hear
the rear speakers (with the front mute). There is a slight different
between rear speakers on and off. For some music I prefer with the rear
off but for some - on. I am not sure but just taking what's should be
the correct way to listen to stereo sound. Eliminate the rear speakers
for perfect stereo.

Regarding the knob, havent't tried one but once I used to use Solid
brass cone pointed at the knob but couldn't really tell the diff. I
read somewhere that volume control, fius and other switch are all
potential cause for sound distortion because of vibration but who
cares. that's why some people eliminates fius but who cares!. For me
High End is a hobby if I got the money and time I play around with my
toys. Do I hear a diff? You guess is as good as mine.