Gorgeous day here in NE Iowa! So I figured I would take my 600 out for a quick trip. I have the Minelab adapter so I could use my Sun Ray Pro Gold head phones. No matter what I did I couldn't get them to work. So I dug out my old Koss phones than came with my Explorer SE. They worked like a dream! No more of the cheesy 1/8" headphones that came with my Equinox. I went out for about 20 minutes at the local school. Only a couple of memorial cents and a clad dime and a toy pilot badge(I think) that was down around 7". I was running park 1 and sensitivity at 23. It was pretty stable. I think I might have a good year when I hit the fields!