Anyone only hunt in all metal? if so..once you put in the time, can you distinguish jewelry in that mode? or is it best to use coin/jewelry mode? when i get the Safari, i want to learn to hunt by sound and not rely so much on the TID #'s. i hunt in SC so i'm after old silver which i know FBS is great for..but i also want a machine i can take to the lakes and mainly beaches to KILL gold/silver jewelry!!???