I have a vantec tornado on a AX-7 controlled by a pcmods rheobus. If I turn the rheo all the way down it is not enough juice and the tornado shuts down or if I turn on the rig with it turned down the HSF wont start. I am concerned that I will bump the dial and turn the rheo down and shut off the HSF and fry my 1600. My question is, Is there a way to keep the rheo from dropping the voltage too low? i'm thinking about supergluing a stop on the dial but that would look tacky. Any other ideas out there.