I went out today with another explorer XS owner and with my SE I was running a little looser modified explorer coin program and was hitting the same depth even a little better than his XS which he was running nearly wide open, so I don't know for sure. Hes been using his for two years and I have been using mine for about a month, needless to say he pummeled me in shear numbers of coins dug, but I was digging all signals cause I'm trying to learn the iffy's, I did manage to find two rings though. One was home made and the other was a love/peace ring made in Hong Dong, but I think I am finally getting a clue here, between us we must of got 50 Wheaties, no silver though. Then tonight I went out by myself for an hour and found another ten Wheaties and clad, best was a 1918 but it got chopped by a lawn mower, and a 1949 pristine even in color, pretty coin, Au50. Before you ask for the photos, I can't seem to find my frickking camera. As always, good hunting, bad hunting, at least I like what I am doing and really,how often is that? We were both using sun ray eight inch coils, and I'll tell you, boy can you notice the lighter weight and better target separation. I'm definitely buying the 5 inch.