Sorry for all the questions lately...but I have a question about notch and iron volume. If I were to make a program where I wanted to notch numbers 1-28, but had iron volume on ...would that even make sense? Would I even hear the iron still? I want to be able to hear iron but also not have to deal with some of those pesky signals. This is still with me wanting to get 7-8" deep coins. Just curious on your thoughts if I can utilize these settings to still accomplish decent depth without too much chatter