New ACE 250 owner, first outing, found it easy to use new detector to find pennies, dimes, quarters, without digging so much junk." Nickels not so much". Is it just me or when the detector sounds for and shows a nickel I seem to dig pull tabs. Is there something in the makeup of the nickel that causes it to show simular to pull tabs where other coins are clearer. Adjusted sensitivity back and force, did not seem to matter. Or is it inexperience?