I used to run full tones on the Deus with zero discrimination. I found full tones to be too "busy" for my liking and eventually switched to 4 tones. I'm a coin shooter, so it's important for me to be able to clearly identify a high conductor in the iron. For me, I find that disc set at 7.5 with iron volume set to 1 accomplishes this perfectly. My coin program is based on Deus Fast, but I've set the frequency to 25 kHz with ID Norm set to off. I do this so that copper and silver coins produce extremely high TID's. A wheat penny for example typically has a target ID of 93. I chose 4 tones because I like to set a tone break at 92 with a frequency of 993 Hz so that high conductors scream "dig me." From there, I have a tone break set at 80 with a frequency of 800 Hz so that I don't ignore copper / nickel IHP's, trimes, later IHP's, half dimes, etc... My next tone break (7.5 - 79) has a frequency of 400 Hz, with the last tone break having a frequency of 120 Hz.
Since the OP mentioned target info I wanted to point out that in my opinion the Deus always seemed loud and "flat" sounding to me. A silver dime at 6 inches was just as loud sounding as a silver quarter at 2 inches. I experimented with setting audio response from 4 down to 3 and don't plan on ever going back, at least not if I am searching sites contaminated with modern trash. I found that setting audio response to 3 gave me the degree of nuanced audio that I desired so that I could differentiate coins of different sizes at different depths. Not only did I not lose any depth; I found a liberty cap large cent 10 inches deep the very first hunt that I made the change to AR 3! I will say however that it took me MANY hours to really understand the audio info that the Deus was providing me with. I can now identify a coin with a high degree of accuracy, but even to this day will fall back on the old saying "when in doubt, dig it out" if I am unsure.