I recently purchased an ace 250 after reading great reviews. I am not happy at all though..maybe someone could fill me in but it seems like the pre settings they have for it don't discriminate very good at all. I constantly get silver or coin signals. I know when your swinging it makes a difference if the target id stays exactly on what it is showing and doesnt jump around but its getting old. I know ive been in some yards that surely have to have some silver or older coins. am i just better off spending the money and getting a nice expensive detector. I know you could prob have a better chance of telling what kind of metal you are digging. are the expensive fairly easy to get used to and know what to listen for? thanks