I wish I had a good answer for you. I am not a fan of those hand-held electronic locator rods. The way I learned was with a transmitter with two ground probes and a pair of L-rods. You turn on the transmitter and let it sit for five minutes or so then walk around the transmitter until you get a rod response and then follow that line to the target or move the transmitter over fifty feet and take another shot. Where the two lines intersect is your search area.
It's not easy learning any kind of swivel handle or pivoting antenna. It's fair to say most people never learn--too much work involved. Some people think if they spend thousands of $$$ they will not have to do any practice work. I know people who have spent over $6000 and they are very unhappy. That includes some of the modern ones from Europe. That's why I am working on the all-electronic receiver I half-jokingly call it the Contraption.
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