I am an avid beach hunter. Living in Arkansas that comprises fresh water swimming beaches and much anticipated Caribbean vacations. I have detected for close to 50 years, both dirt and water. I can't say I never fell into the "make a program" to fit any special need. But over the years I do like everyone else finally does, I do what I feel is right for my hunting success, use what I have learned. My opinion on the subject of "programs" for hunting is that the hunter alters the program installed in the machine to make it better. The manufacturers of the machine when installing the program have made it as good as they feel it can be. Of course, you can tweak settings to overcome problems you encounter, but the core setting has been installed to fit the machine you are using. I usually run my machine "raw", meaning I don't tweak it very much or often. I change the sensitivity if needed, and that's about it. Remember, this is MY opinion and what works best for me. The engineers that install the programs on their machines have basically enhanced certain settings to fit the mode of operation. With multi-frequency machines like the Legend, Equinox, Deus, certain frequencies have been enhanced to help the operator find certain targets better, like gold and silver. Lower frequencies work better on some metals, higher on others. So, these are programmed into the mode you choose to hunt in. Salt water is addressed in the beach modes so as to compensate for it. Again, I have found that the sensitivity settings usually help me eliminate any problems. I am sure there are many folks that will disagree with me on my style, and that is understandable. The best advice I can give is use what works for YOU. As far as beach hunting, my system is simple. If I am searching on a well populated beach (number of people =number of targets) I use a simple search pattern. I am not looking for 2 ft deep targets, I look for shallower targets that have been recently lost. I have a hunting partner that will dig halfway to China for a penny. His style not mine. Yes, he sometimes finds a good ring in a deep hole, but I can cover another 50 ft of area while he is digging. My theory is, I want to be able to cover as much area as I possibly can (coverage of area yields more finds) and digging that 2 ft hole is taking too much of my time allotted to hunt. That is another thing about changing settings on the fly. Unless you completely understand the program you are using, you can just as easily negatively affect the program. The simple rules of detecting are basic, the coil has to go over the target for the machine to respond. Listen to what it is saying. It has been my experience; the machine does not lie. It is how the user responds to what the machine is telling you that determines the end result. Always trust your machine, it is the expert. My best advice for beach hunting, cover as much ground as possible, learn the language of your machine, and trust it. If I am searching, I am looking for targets that register a solid (constant repeatable) signal. Alloy metals will usually give some sort of inconsistent signal. I guess what I am saying. that works for me, is learn your machine. Never try to outguess it, never think you are smarter than it is, just listen and learn what it is saying. Long post, I apologize. Thanks, and HH