How much better is the V3i than the DFX in the pre set programs? Is the V3i better around iron? Or can it be made better around iron? The area that I hunt is full of old lumber camps, logging railroads, saw mills (steam and water wheel powered) and old homesteads from the early to mid 1800's through the 1920's. Trying to find good targets like coins is tough most of the time. Axe heads and horse/oxen shoes are everywhere. And of course large flat washers and other various large iron objects.. The DFX v.i.d.'s all of them, axe heads, horse shoes ect., like good targets. Most hunting, when I can, is done in a program that Larry from ILL. posted for the DFX a while back. I also use a 10'' DD coil on the DFX. I still find some good targets, but just reading your posts on the V3i makes me wonder if there would be an advantage in buying one. And of course, I do hunt the fields and wooded areas around these places.