Stereo Cw: Advancing the Art of Equalization

I've written numerous Blogs on the concept of Stereo-Cw and Stereo-Ssb.  The original 73-Magazine concept used fixed-value R/C circuits to accomplish the split-ear technique.  I transformed this idea into a variable frequency approach using a pair of Autek QF-1A analog IC-audio filters; a more expensive, yet more readily flexible approach.

Another advantage to using the QF-1A's for stereo-CW is the built-in Aux. Notch Filter in addition
to the PEAK/LP filter circuits.  This is useful when I have an array of callers "spaced around" my listening Experience, with one Tuneup-Turkey (IDIOT) in the middle of it all.  The QF-1A's Aux.
Notch filter can eliminate the Turkey w/o affecting the Stereo-Cw balance.

While equalizers can do the same thing (on multiple frequencies even), using a single knob to
"swoop in" and notch an offending carrier is more effective.  With BOTH Autek QF-1A's and the equalizer inline, the equalizer can clean up the filter artifacts, while the notch filter knocks out
the Tuneup-Turkeys.

While writing Part-4 of the blog series on Mastering the Art of Experimentation, it occurred to me
that we can accomplish the Stereo-Cw/Ssb idea thru the use of a multi-band stereo equalizer unit.  Because it is so compact (as equalizer units go), I prefer the Radio Shaft 32-2059 15-band/ch unit.

Essentially, the Stereo-Cw method involves splitting the audio stream into 2 channels tuned above and below a center frequency (usually around 1000hz).  In general, lower-pitched signals appear
on one side of the listening Experience, while higher-pitched signals gravitate to the opposite side.

A downside of cascading several units on each channel is the possibility of so-called ground-loops between the units introducing all manner of hum artifacts in each channel.  Then again, by cascading the stereo equalizer AFTER all the filter units, individual artifact sounds can be effectively NOTCHED out by the individual frequency slider knobs related to that artifact signal.

Another advantage to introducing a stereo equalizer is that it gives me 30 more knobs to slide
around - you KNOW how I love to diddle knobs.

What about you? 
Have YOU ever utilized a stereo equalizer in your amateur radio setup?
How DiD it turn out?