Here is a scenario:
Typically when I create new sessions it could take me months to complete the vocals.
I am running pro tools 9, I create a new mono audio track and I start recording. My microphone is plugged into my MAudio Fast Track Ultra8r usb recording device. Usually when I record vocals I set the sensitivity to have as much power as possible without clipping. Once the track is recorded I will work on preliminary mixes to give me an idea as to how it sounds. Usually the volume fader for the vocals will come down which is where it sits better in the mix. I save the project and exit.
Weeks, sometimes months will pass, I will call up the session and continue to work on the vocals. My microphone sensitivity may not be in the exact same spot as it was (because I've since worked on another project and make adjustments to the sensitivity) OR, if the volume fader is lowered to the mixing level the new vocal recording signal won't be as strong because it was initially recorded at a higher db.
What is the best way for me to maintain the same microphone settings on my sound card and software to give me consistency for when recording on separate occasions?