I just discovered what TheVibe on the MS-70CDR can do post distortion in my chain set to Chorus mode, speed and depth pretty low, and Bias full up. Thickens it up, seems like it makes the fundamental more clear. Seems like a pretty dramatic preamp effect that's more than an eq curve. Ridiculously surprised by this, I'm sort of reconsidering my entire board around it. I'm not understanding what the Bias does though. The effects list describes TheVibe as "unique", and the Bias control as "Adjusts bias of waveform modulation." 100 sounds pretty much like 0, ~50-60 takes a lot of bass content out, and 75-100 adding a lot of thickness. I'm trusting my ears for what sounds good but I'm still curious to understand what it's supposed to emulate. Any help is appreciated.