Has anyone extensively experimented with full tones? I run a 4T that's basically run as a 2T [T1(100)=DISC, T2(100)=<7, T3(800)=8-97, T4(100)=98,99) but I've never had a comprehension issue running a full tone type program on any detector. Just always used a 2T. All that being said, I had someone tell me that he experimented with full tones and in testing found full tones would pick up a target amongst iron that a say 3 tone program wouldn't in certain circumstances, all other settings being equal (subsequently I also heard this stated on a youtube video about full tones). Now this isn't one of those 'that sounds logical' statements so, and as I'm not one to holler out 'that's not true' or 'I doubt that' at the drop of a hat, I thought I'd inquire here before getting out and making a full investigation of this idea.