I am curious why in Andy's new book on the Explorer, he doesn't dive into what so ever hunting in all metal, other than to say some how it's less superior to pattern hunting and that mantras such as "all metal, all the time" are ignorant (did you read that one Bob??), raised my eyebrow, for sure. It takes a great deal of patience and skill to hunt in all metal. Just because Andy doesn't seem to be able to do it effectively or can't deal with all the noise, does not make pattern hunting better. Obviously, nobody hunts in all metal with an Explorer, because Andy didn't list anyone who hunted that way with their settings and experiences in his book. It's like a big sales pitch for pattern hunting. I would think one would train themselves to do both as there are clear advantages to hunting behind some one who can't. It is my absolute experience that all metal as much as possible, with as little discrimination as possible, is the only way in most sites because the slow recovery rate on the Explorer's and the ETrac absolutely, most definitely, causes missed targets, and an absolute loss in average depth of targets found. The depth issue I am referring to does not mean that I am saying while using discrimination, the machine doesn't achieve the same depth, It does get the same depth. However, the nulling interferes with you hearing the weaker responding deep targets and thereby makes the louder shallow responding targets stand out more, which is why many find nothing but shallow clad when hunting with heavy discrimination. There are instances where you may find additional targets with patterns that you otherwise wouldn't in all metal, specifically with the ETrac, but not enough that you would preclude missing so many more with discrimination nulling away. My beef with my ETrac is that I was not given the choice.