I just got my new X Terra 50 at noon today and it was 45 degees in NE Ohio. I quickly put it together and took it over to my neighbors old farm house for a quick hunt before I left for my second shift job. I didn't read the manual and used the factory program. This is a light responsive detector. The area I hunted was full of trash and I figured one or two coins would be a success. I found 5 coins and two small brass buttons. I have read the numbers would jump around, but I didn't find that to be any worse than other vdi detectors. I did notice that the tones were consistant on the coins and button. I did not have time to play with the all metal and I think this is where I will get the best performance. All the coins were 5 to 6 inches deep and deep rusty iron only fooled me once. Some of the other detectors I have tried in this spot were fooled by this rusty junk more times than naught. I am very impressed with the 50 in the short time I used it. R.L.