Same thing detecting anywhere. As soon as my detector is on, it's swinging.. Hate my Quattro, the old Sovereign still finds stuff except I can't use headphones with it. There is a book out , Getting the best out of your Quattro, written by an American fella, which gets great reviews overseas but no one here, even in the Te Tahi Detector club in Auckland, has a copy.
Keep scratching
Nulli Illigitimi Carborundum