I edge search from bags. Reach in and grab a pinch of them, maybe 3"-4" tall of a stack of coins. Then rim search for silver, it will take you forever to date search dimes. You can spot the silver very easily. If there's no silver in a stack, toss the stack in your dump bucket. When your done, take them to a bank with a coin sorter, not the bank you bought them from, and dump them.
good luck, I've had some nice dime bag scores.