With both VnIcursal and Veils 2020 side by side I can perhaps add a bit to Jim's answer above:

  • VnIcursal is linear only, requiring lin/exp/adjustable upstream if you want that.
  • Where VnIcursal has a seventh mix out, Veils has flexible submix normalling.
  • Where Veils is pristine across essentially all ranges of input and control voltage, VnIcursal has some distortion character to it past certain voltages. You may want this. You may not. I like having both options around.
  • VnIcursal's trimpot layout is, frankly, error-generating. Very easy to turn the wrong pot.
  • And lastly there's the obvious channel count / HP density difference.