Neswiper has just published a new video showing his approach to finding good targets next to iron using the pro-coil. I didn't realize that the E-trac pinpointer will not pinpoint a nail "easily" in normal mode, and he uses this characteristic to locate the target next to the nail. Then he rotates the coil around the spot till he gets a audio/digital reading on the target. I think its definitely worth watching if you're hunting iron infested sites like I'm currently doing.
-Alex
-Alex