A high tone for the nickel signals. In the real trashy areas I hunt there are hundreds of pulltabs and some can slaw too. I would like to run the detector with no discrimination but when you do you get many signals in the tab area and some in the nickel area that all sound the same. It makes it hard to have to stop and analyze all the TID numbers to see if it falls into the nickel numbers. I know I can run it in coins mode but the sound is not as good that way. Maybe Garrett will listen if we suggest it. I dont know how hard it would be to do this but surely it cant be that big of a deal.