I use it all the time...program 2 is always set up in all metal, SL, sense between 90-99, thresh at +4 up to +9.
I either hunt using these settings or use it as a check when I hunt using program 1 in disc.
Mostly just another way I wanted to learn to hunt but it sometimes has advantages.
I think under some circumstances all metal goes deeper.
Disc goes really deep too but using am to check a few deep targets I found in disc I saw more accurate and more solid less jumpy numbers on the screen.
In one area I hunted with a huge amount of EMI, and I mean more than at any other site I have ever been to, those high power am settings actually worked better than disc.
Lots of jumping using both am and disc but as I ran over targets my detector again gave more solid, repeating info when I got my coil center over each one than disc.
This was actually a lucky break when I discovered this, I was hunting in Disc and checked a target in am and then forgot to change back to disc but started to pick out more targets easier before I realized I was still in am.
I practiced using am a lot more after that, and it does take practice and slow coil movements to get good at this and recognize good targets using such high settings but I eventually got very comfortable with them and now split my hunting time about 50-50 using both.
I turn the volume pretty low in am because listening to all those signals both false and real AND that threshold tone which does get pretty loud when you go higher up into the threshold positive settings tends to give me a headache.
The number one way I use these really high settings in am, sometimes with a slight change in speed from SL to DE, is when I hunt in extreme iron infested sites.
I have written about this technique here before and I call them blast through settings and this is my #1 way to hunt sites like this.
This really took a lot of time to master but eventually I found I could pick out non ferrous targets way better than in disc in extreme iron filled sites.
That is me, others might not like it or see the logic in hunting this way at all but around here I am pretty much known as the crazy guy because of some settings I use.
I also got pretty good at iron infested sites using disc really low at like 1 and monotone after much practice and experience but overall I have found more using am...again after hours of experience doing it.
I figure the more ways I learn to hunt any kind of site the more chances I might find the good stuff...the more arrows you have in your quiver the better sort of thing.
Some just use disc, some use am more and then there are hunters like me that effortlessly switch between them, whatever is most comfortable for you.
I just figure on some of my more iffy targets checking them both ways does not take long and the more info I get the better more higher percentage digging decisions I can make with the most information on target behavior at my disposal.
When deeper targets give me similar positive readings checking them both ways most of the time something good is hiding down there or has been so far.
As far as disc settings and gold that metal can and will come in very low even in iron in some small sizes like studs or configurations like very thin gold chains and tiny clasps but most of my gold has come in at mid foil on up.
Because I have found some small yellow gold rings and even larger white gold rings at 24 on the disc in the rare times I use more disc than my usual disc on 1 settings I will set it at no higher than 22-23 with confidence.
I might miss something even there but when I have no patience to deal with heavy foil and small can slaw infested sites these settings are comfortable for me and make me feel I am not going to miss much whether that is really true or not.
Sometimes what I feel and believe in my head is more important to me to have a less frustrating hunt without the what ifs bothering me than reality.
I usually hit sites more than once so I figure whatever I miss on one hunt I will eventually find on another.