Another NOOB question:  Is it a bad idea to adjust voltage on R606 while it's mining or does it matter at all?  Is there a best practice procedure when adjusting the voltage setting on the R606?  For example, if I want to test out different voltage settings, should I shut down cgminer first, then set the voltage, then restart cgminer?  I just want to reduce any chance of damaging the hardware.

Thanks in advance.