I like using both 1 tone & 2+ with the 10 Disc setting, I will only dig if the meter reads 45 or higher and I like the Fuzzy sounds that require you to swing The T2 a little faster and sharper to get a cleaner signal. yesterday I was digging up coins and other keepers in a Heavy Iron site that has been Hunted Hard with My Sov. and A Garret Ace 250, I would have two to four nails in the same Hole with a coin and trash as well, what I have learned to do is set my T2 in all metal mode before I dig a plug. This allows me to remove all Iron and see what was really in the Hole, I grab a handful of dirt and swing it across the Coil the old fashion way in all metal after removing allot of dirt out of the Hole, I have been stunned by the amount of Iron that was in the Hole with a good target. Most of the time I do not get a solid reading on the meter, it will jump from 55 to75 or 40 to 85 and for good reasons. More than one target in the Hole and this will always be when you Hunt a Heavy Iron trashy site. I have had good success in the 2+ with Disc at 20 digging the Jumping meter readings and Fuzzy ones as well. I also swing the T2 just like my Sov. in Heavy Iron and get very good depth doing so. Nice even slow swings and short working a small area at a time. This is the Key in Heavy Iron.