@CDSh - You probably know, but the Glockenklang frequencies are 40Hz, 550Hz, and 18kHz with a fairly low Q (broad effect). Essentially, they are: "Super Lows," "Punchiness," and "Dog Whistle." Like @AB Nate, I run mine flat or with the mids boosted a bit. The mids are essentially the same as in the Darkglass (550Hz), and the lows are almost an octave lower (the Darkglass is 70Hz). I have no idea why the treble is set so high, though.
It comes down to whether you want the now-ubiquitous "Darkglass sound" or the more transparent Glockenklang approach with its great passive mode and "traditional tone knob." I chose to have Glockenklang on my basses to keep the core sound pristine and have the passive option, but put Darkglass on my board so that I could add that flavor (I swap between B7K and Vintage Ultras, since they have the same form factor).