The Fisher Gold Bug will do ok at Stuart town......lower the gain if having balance issues....balance right to the ground and use manual balancing if you have to. The trick is getting them close to the ground...work the area just to the left as you cross the first creek. That open flat area including the tracks/road leading up to the dam, gives up gold to most VLFs. Plenty of ferrous targets hiding small bits off gold, so better to use Disc rather than do your head in trying to use AM. The GB has an awful AM threshold....never smooth, and its recovery rate is poor....a SAT feature would have been nice...but that is just another method of dumbing the machine in order for it to handle nasty ground. Remember that the unit needs to be in AM in order to GB...switch back to Disc and up the gain a tad to compensate for having to lower the gain in AM to GB. Disc mode often helps iron out nasty ground on most units...the more Disc you use, the better the unit will handle the ground, and the more gain you can use....however, you sacrifice small bits of gold in doing so. Nasty bits of flat rusty tin/metal litter the ground there, and the Gold bug is no different in sorting it out compared to any other make model VLFs in that situation. I prefer to run the Disc on my VLFs at 0 -5...id prefer to hear the junk because you often can still hear a small high tone close by if the larger iron target pulls low (hence the reason many folks circle the target while sweeping across it)....to much Disc and that little close by high tone is gone due to the larger junk signal...and the amount of Disc...canceling it out. Remember to recheck the area after removing junk targets....the gold was there first....and good ol ST has given up many nuggets by applying this rule.
What you will find with that unit...and many others in places like this...is plenty of high tones that turn out to be flat rusty tin/iron. Sweep from all angles when you encounter this...and look at your TID...(walk in a circle round the target and sweep)..dig as many as you can as this will teach you much about the accuracy of your machine. Dont worry to much about miss identification....there isnt anything out there that can with much certainty.
I had some fun with the GB out there...so much so. i bought the F19, which was simply an updated version of the GB....i sold it just recently due to having to many detectors.
Stuart Town is a tough gig for VLFs...so if you find color there...you earned it. Its a great place for testing the abilities of VLFs...more so when the ground is wet to 4". Hill End and Wattle Flat are also similar grounds.
Good luck.