Hi Guy's
Try setting talk to auto (manual page 247) it automatically changes when the style stops.
Col
The problem with that setup is that you can never sing with the arranger off and still have your effects on your voice. I do lots of stuff without, before and after the arranger section gets turned on. In fact, I never use the talk button at all - if I have to talk for more than a few words ... I'll just lower the effects knob.