Sulley - remember that the role of the VSCS is to 'schedule' to an optimum position as determined by the CLP etc. to drive the nose left in order to assist in overcoming torque reaction. Switching them off takes away a 'friend' in this instance I would suggest. You also cannot disable the VSCS right fin unless you disable the SAS, so you are making things possibly worse and not better.
Not convinced switching them off causes them to go to neutral - the indicator might but I'm not convinced the fins do.