The nugget was just a murmur using FG, a nice dipping response, theres a lot of grass and sticks laying everywhere so using a larger mono is problematic. Steve will know the signal response I'm talking about from our prospecting adventures in WA a few years ago, he did really well on nuggets around this size.
I went back the next morning with one of our twin boys but only managed a 1 gram piece for the four or so hours we hung around the area, its one of those places you go detecting in with zero expectations and every now and then it rewards you.
JP