Suttons, at least their semi recent production runs, ie. the last 5 plus years, may lose their silver plating, and you end up with a brass spoon. I tried to do a dozen or so more recent #22s and a dozen older #35s last night, maybe 45 minutes in the tumbler. Not awful condition, just "experienced" lures with the normal tarnish. I cleaned them with Brassso first, maybe that was a mistake. The #35 lot came out fine, better. The #22s were bare brass post procedure. Great legacy finger lakes company, but the plating is less than it once was IMHO.