I tried one but couldn't get it to ground balance. This was on Folly Beach, SC where there is some black sand. Anyway, couldn't get it to run stable so I sent it back and got a Excal II. There are some who really love this unit though. I guess it kind of depends on your location because I've heard they are hard to use on the west coast too. I do have a Whites Surf PI Dual Field and, like Sandman says, the coil floats on this one too. In fact, the whole machine will float like a cork. I really like the Minelabs for my area as they are very stable and don't need ground balancing. But I will try the Dual Field next summer and will be looking at ways to neutralize the bouyancy in the meantime. I have put it on a straight shaft so that may help but haven't had it in the water yet so can't say. I would try to check with some of the people in your area to see if any of them use it and what they think about it. Maybe someone in your area will let you try theirs for a little test. Good luck. --Jerry