I have somewhat gotten the hang of my ace250. I made a record find for me today of 32 coins. It was also notable that I only dug up 2 pulltabs. I also found 2 little buckles, a fishing reel crank and an unknown little chrome button looking thing. It has a tiny little threaded shaft on the back. The other little item is a fan switch. The big coin with the skull & crossbones on it is actually a plastic play coin. The heartshaped diamond is also plastic, both were surface finds.