On the whole, a faster sweep will discover larger, deeper gold targets, but will are inclined to skip modest shallow gold. A slower sweep will are inclined to reduce sensitivity towards the deepest targets, but will find compact shallow gold easier. As an archaeologist, I always propose seizing this chance https://www.sociomix.com/c/ugc/gold-hunting-success-with-metal-and-gold-detectors/971791768473539