My project is designed mainly for use in a lab environment, with regulated power supplies. If I understand correctly, I can simply use this virtual ground with a single regulated 10-20V input to provide a +/- supply to a transducer or wheatstone bridge as well as the INA114 signal amplifier IC. In a wheatstone bridge, power consumption may be relatively high with a 120-Ohm strain gauge, but this won't be an issue because this current is all handled by the PSU - right? The virtual ground should only be used for filtering caps and Ref for the INA114.