I was out doing some testing whith my musketeer advantige , and what i have found amazed me , now i have been detecting for 3 years yes i am a gren horn, Now i have ocasianaly hear people say to get better depth you want the ground balance just a bit positive that is when you lower the coil you just get a sound i found that this is tru in all metal whith the musketeer just a bit positive i got noticable more depth and i lose depth when raising the coil i get a signal negitive and whats worse if im hunting whith the ground balance just a hair negitive that is when you raise the coil you get a signal i lose depth and worse when you start diging the hole it fools you into thinking somethings down thear BUT IN DISCRIMINATION """ its the oposite yes thats right i was a bit bummed out when i would ground balance in threshold all metal then switch to disc mode and the signals were bad they did not have that nice ring to them but made a sound like a radio shuting off ssssip ssssssip sssip so i set the ground balance wile in all metal just a bit negitive and OOOHH what a difrence that made now the signal was clear and giving a nice sound vhhh vhhh why had no one told me this so i will make a statement that you can test on your own to improve depth and clarity of signal on other detectors If you hunt in threshold all metal set the ground balance just slitly posotive not nutral when you lower thecoil you will just strart to get a sound not to much YOU WILL GET BETTER DEPTH now if you are hunting in discrimination set the ground balance just slitly negitive as you rais the coil turn the ground balance just untill you start to get a sound and stop YOU WILL GET BETTER DEPTH AND CLEAR ER SIGNALS comon talk to me