2) For the 4 chorus types: Liquid, Organic, Shimmer, Classic, which one is intended to be closest to 80’s rack chorus?
Here’s a great thread going into depth with the Chorus modes from the engineer that designed it: https://www.eventideaudio.com/forums/topic/modfactor-fx-types-definitions
As Brock mentioned, I also recommend the newer TriceraChorus algorithm for what you’re after. The effect can give you analog-style choruses or Tri-stereo chorus like the popular rack units from that era. The factory presets are fantastic.
