So, I made a few attempts at making models, but in the end, my ESR ended up somewhere between 1.000xxxx and 0.9xxxx, and from what I recall, that’s bad. Also, the best one (0.9xxxx) ended up completely silent. I think my issue was getting the input and target audio lined up perfectly. After recording, I use audacity to line up the 2 files. I line up the 2 clicks at the beginning, but by the end of the file, there appears to be some drift. So, to combat this, I decided to record both Dwarf outputs to a single stereo track. Output 1 going through the amp, then the audio interface, output 2 going straight to the audio interface. Finally, in Audacity, I split the stereo track into 2 mono tracks and save one as target.wav and one as input.wav. This solved the problem and my resulting ESR ended up at 0.0012241610093042254, which is a lot better, and sounds pretty decent. Just thought I’d post this here for anyone else facing similar issues.
Here’s the pedalboard I used to make the recording.