If you've read the title of this post and wonder what the heck it's all about then you are likely never to have used the Does F**K All (DFA) option when mixing.
Let us explain...
Over the years professional mixers and engineers have sometimes responded to client requests by telling their clients they have made a change but haven't, this has adopted the euphemism of being the 'Does F**K All' knob or fader.
The DFA option is often employed when a client is perceived to be making endless demands and in a moment of exasperation an engineer will adjust a control that isn't connected to anything or the process is in bypass and so the change does nothing and then ask the client if it sounds better.
So in this survey we are asking have you done it? If so do you use the DFA option regularly?