I have had some sucess finding nuggets with a Fisher Gold Bug Pro but recently went out with a friend who has a Minelab 5000. He was easily picking up nuggets where the GB gave no indication at all. I realised I needed something better but was not sure what would be appropriate. The 5000 is rather large and heavy for carrying a long distance and is complicated compared with the GB Is there any recommendation as to a detector that is significantly better than the GB but has its lightweight features and ease of use? I suppose the Minelab 7000 would be even less likely to meet my needs.?I am not very fit and only get out gold detecting a few times a year.