I am still in a learning curve with my E-Trac and have lots of things to learn... I was wondering when do you you decide to use the 'Quick Mask" feature? If you have a signal that is 'iffy' and it still sounds "iffy" at a 90 degree change, do you dig or hit the quick mask button? I was wondering if I hit the Quick mask when I had the first "iffy" button it would improve the time to deciding 'dig or not'. Thanks for the help! How often do you use the quick mask feature during your hunts.