NAM Trainer: Should "fit_cab" be always-on?

I'm contemplating simplifying the UI of the trainers. Currently, there's a checkbox that users should check if the gear they're modeling includes a cabinet at the end of its signal chain:

Browser trainer

GUI trainer on Windows

What it does under the hood is penalize the model for getting the high-frequency part of its predictions incorrect. There's not actually a change to the model like adding an IR "layer" to the end of the model or anything (see also: why you can't "remove" the cabinet from a full rig model).

The proposal is to remove the checkbox from the UI and have it always be "on".

Pros:

• Simpler UI, closer to "It just works".

• You can always use bin/train/main.py to customize training if you want.

• I can roll it back in a future version if something else goes wrong.

Cons:

• This would make it harder to tell if the model includes a cab (though the metadata should be used for this, ideally).

• Slower training, especially on macOS devices with apple Silicon versions that don't support some of the operations needed (Is this all of them? I don't own any MacBooks with Apple Silicon to test with...)

• Slightly higher ESRs, usually (though it's often very minuscule--and sometimes better!)

I'm seeking input about this. Feel free to let me know your thoughts at https://github.com/sdatkinson/neural-amp-modeler/issues/436 or shoot me an email.