This has been a continuing annoyance for me. I love external knobs, have had them on my keyboards and recently purchased a big wheel just to have on the side. Because I love the feeling of wheeling! Feels great when I'm booted in Windows, I have 100 steps of volume to always play with. On MacOS however it's a different story, very few steps. I've been trying to solve this issue by using the finer volume control (Shift + Option + Volume up/down). But it doesn't even trigger fine control when holding Shift + Option and using my knob. It only works with the touch bar volume buttons. Have tried circumventing this issue by just remapping in Karabiner, no dice. Anyone have any ideas on how I could tackle this?