Hi everyone , I have an ace 250 and it seems the only thing I have found are blisters . How do you tell what things really are . Everyone seems to find thing right away . I would like to find a real coin and not a door latch are a nother can . So my question is how do you adjust your ace to tell you what its target really is . And also I would like to go to the park, so my question is do I need to get permission to do that . I would like to thank everyone who answers questions for us green horns . I am in no means giving up the hunt it is so much fun . Even if I dig up LOTS OF JUNK .