First I would ditch the 11 DD coil in a trashy setting. You have a detector that separates well and the sharpshooter will make it even better. Personally I almost never use v-break, notch or discrimination. I set volume at 10 just because the sound of machine gun iron bugs me really fast. Sometimes I will set volume at 12 just to hear what I am missing without it driving me crazy. I set gain at 100 all the time. On this machine there is never a need to go lower than that as it is super stable at its highest gain settings. Like Monte mentioned, gold can be found in the foil range of course but if you are in a trashy site such as a schoolyard and decide to dig everything above iron, you will be on your knees digging small foil bits all the time. This machine really likes small and sometimes minute low conductive items (stuff that my CoRe or MX7 would totally ignore). For this reason, I rarely dig any target with an ID of 46 or less. Ninety nine percent of the time these will be foil bits and foil paper. You might miss an ear ring or small pendant but that's a choice you will have to make. The smallest ring I have found (a really tiny 10k ring that weighs nothing) has an ID of 48 to give you an idea. A substantial man gold ring will fall in the 60-70 range. Silver rings will usually ID in the mid eighties to low nineties.
On the beach and for modern clad coins, this is my favorite detector.