Q: Can I use External Control when Torq is running in ReWire Slave mode?

A: No.  The control signal from the Torq Control Vinyl/CD's is audio data and the ReWire standard does not allow audio data to be sent from the ReWire host application (such as Ableton Live) back to the ReWire slave (Torq).  This is true with any ReWire application and is a limitation of the ReWire protocol, not a limitation of Torq.