@benanders @soix @mashif @tweak1 @ghdprentice So at the end, I went a different route and accidentally got what I wanted.
I was using some inexpensive, 28" stands with glass bases and platforms from Amazon, and I upgraded to the KEF S2 bolt-on, color-matched stands for my LS50 Metas, filled them with sand, and discovered that the change in stands resulted in a more full-bodied sound, bringing vocals more forward, which is exactly what I wanted (even though that was not specifically done looking for that result, I just wanted something less likely to get broken or knocked over by my 4- and 6-year old sons!). Since it sounds the way I want now, I went ahead and ordered a new/upgraded remote control from PS Audio too, since my original one that came with the GCC-100 is quite worn out.
Cheers to all and enjoy the music!
-Ed