I just picked up a Terra 50 and I'm new to this machine. It has the stock coil and I'm getting the hf 6" and the hf 5x10 DD coil very soon. Any advice on how to get the best from these coils and this machine? I'm not a newbie and had many other detectors in the past including Sovereigns. I don't get alot of freetime so I want to make the best of when I can get out. I'm basicly a coin shooter and someday may try nugget hunting too. You can email me one on one or post it here, looking for ALL the advice you can give! Happy Hunting and Trails to All! Woodstock