Don, the discrimination "tweaks" that I wanted have been incorporated into the finished product.

The main one I was after was to open up the conductive range a couple more clicks in the Coin Mode, through 46, for US silver dollars. But I do change some of the "factory" parameters to better reflect the sites I hunt and the techniques I use. To do this, I opened up the Coin Search mode and made a few changes to it........ I turned Recovery Fast ON, changed Target Separation to Ferrous - Coin, changed Pinpoint to Sizing, turned on Target Trace and Target Trace Pinpoint, changed my Auto Sens to +2, changed Pattern 2 to accept all values, set the Volume Gain and Threshold to my "comfort zone". I left the Tone ID as multiple tone conductive, as I like that mode when hunting in areas with lots of modern trash. When I was done making changes and leave the programming mode, it will ask you if you want to save the changes. If you say YES, it will implement the changes into the Coin search mode.
For hunting the more "rural areas", I wanted to make a new search mode for the Combined Tone ID with the same "parameters". To accomplish this, I simply pressed the menu pad, pulled up the modified Coin search mode I just built, changed the Tone ID to Combined and press the detect pad. I also resized the "bins" by lowering the ferrous line to 21 and changed the parameters of the conductive bins. You can also change the audio pitch of each "bin", if you have certain tones you hear better than others. After you are done, since you made a change to the program, it will once again ask you if you want to save the changes. Instead of saving it over the Coin Program, save it to one of the other Search modes that is availablle (6 - 10) That now becomes your Combined tone program and will be kept in that search mode slot (M6 on mine) to be used in future hunts. Once saved, press the soft programmable pad and set it for Previous Mode. And you're all set! You've modified your Coin mode to reflect "tweaks" for your style and sites. And you've built a new Combined program to take advantage of that functionality.
In the upper left hand corner of the display, you'll see two letters, each followed by a number. The letter M represents the search Mode you are using. And the letter P represents the discrimination Pattern for that mode. The numbers behind M will be one of 1 - 10. 1 represents the factory Coin mode and, in my case, 6 represents my new Combined mode. The letter P will have either a 1 or 2 after it. This is the discrimination Pattern you want to implement with your search mode. I made my Pattern 2 in every one of my modes to be an open screen. I sometimes like to hear every sound available when I'm sorting things out. The detector starts up running the search mode it was in when you shut it off the last time. So when I go out to hunt, I turn it on, run the Auto NC and glance at the M and P in the display. If it says I am in M-1, representing Coin mode, and I want to hunt in the Combined mode I built, I simply press the user pad (soft programmable button) Now M1 should have changed to M6. If it says P2 and I want to run with more discrimination, I press the detect pad and it switches to Pattern 1. By the way, these are just the values I like to use. Any mode can be set to your preference. And either Pattern can be set with the amount of discrimination you want.
HH Randy