I am planning on having a CTX by spring. I have an etrac now and use TTF the majority of the time. I am looking forward to the tone id bins on the CTX. Does anyone use lower tones for coins instead of the high tones and having ferrous items high tones. Twenty years ago I was using a Garrettt Master hunter 7 that had a bell tone feature. I had a Deapthmaster signal enhancer in line with the headphones that you could change tones with. I remember having it set up that coins were a low "Boingggggg" that was very easy to distinguish. I am just curious to see if anyone is trying this setup.