Is there any practical reason to use a 32x stepper motor driver for the extruders when Titan already multiplies the steps/mm? I know the downside is more work for the processor and I like the idea of being able to use LIN_ADVANCE.
Well the DRV drivers are a little quieter, but they sometimes have a whine/buzz that's annoying. The current extruder with a 400 count/rev vs a typical 200 count/rev is already a step above. You won't really get a tangible benefit from a 32x stepper driver besides that.