Called whites today about problem I had with V at Blue and Gray relic hunt this weekend. The typical falsing and having to run extremly reduced gains to stabilize it.The Whites rep told me to reduce my DIsc to65-70 and all metall to 50 then increase your gain. It worked great for me in My test garden ,like a different machine. Just adjust your filter for your sweep speed. He also stated that he was not sure why the programs had such high numbers on Disc and all metal. Said it would work and it did.