I have had my new 10Ă—12 sef coil out a couple of times since receiving it. It seems to be a winner, as I have noticed being able to pick out good targets close to trash. It seems to be a more clear signal on deeper targets as well. If the weather permits, I am going to take it out to a site tomorrow that has produced some old coins to see if I missed anything. I sure hope it lives up to the hype, so far I am satisfied.