Craig;
ya know, it occurs to me that when I pull one target out of the hole the mindset is "Well I've got it , now cover the hole and search on". Bad practice when I think of it. Like you said sweep the hole again ESPECIALLY if it's a pendant or other necklace-dwelling sort of goodie. Oh well, those kinds of finds have been few for me over the years so I needn't worry that I've overlooked any seriously valuable chains as a result. I WILL however change my SOP there.
Jim