This is super helpful. Thanks!Some comments:
1. The Compression knob in the Cathode Follower section controls the behavior of the preamp's cathode follower. Without getting too technical cathode followers are nonlinear compressors. They distort the signal and the distortion increases as more energy is input. A Deluxe doesn't have a cathode follower so that's why it defaults to zero.
2. The Output Compressor is a simplified version of the compressor block.
3. To really get the effect of speaker compression try the Speaker Compression knob. This behaves similarly to the output compressor but also "feeds back" to the power amp. As the speaker compresses the power amp behavior changes.
4. Superb playing and tones.