suhrmajesty
Inspired
You thinking of removing Ideal Mode and replacing it with something else?The Treble control in a Chieftain is actually a "Preamp Presence" control, similar to the Presence control in a Dual Rectifier in Modern mode. It is separate from the tone stack and located later in the gain stages. The tone stack has no treble control.
This is why I don't like Ideal mode.