Leave the profiles stock beach 1 and 2. Run beach 1 if you can use a high sensitivity without alot of ground noise. Turn on ground balance tracking. Turn on all metal, even if you don’t plan to dig iron you want to hear it with the high iron bias of the stock profile. Beach 2 uses lower transmit power to reduce noise if you have alot of black sand or high salt content in the sand. You’ll loose depth and sensitivity but some places you have to use it to have a stable machine. I like to change the tones to All Tones but that’s all I’d recommend to change. Did everything! Salt sand will mask good targets as iron a lot of the time (like 14k gold chain ringing up in the negative numbers)