I am having a great time with the F4, I bet the F5 is as good and or better. One thing I appreciate after the Garrett (Ace 250) I owned and used, is the discriminator on the F4- while not 100% it is really great. My outings and time is much more productive. After the last several months using it, I think i dug foil once or twice and those where balls like the size of ping pong balls or bigger. Pull tabs, Ive dug probably just 3 or 4. I usually double check when it doubt by switching to the all metal mode, then instead of a high #4 tone, you get like a real time picture, which you learn to read. IN all metal, although one tone, it is obvious that a coin is a real, sharp, clean, small focused hit, but things like foil will be fuzzy, without sharp edges etc. Lots of times it easy to read a pipe, or long nail etc, as it will sound over the length of the object, etc. The number 4 tone really lets you know it is some type of good metal or something huge. In the case of a huge iron thing under you, when switching to the all metal mode it will definately lead you to picture something huge down there. It will be a huge long noise, covering a large area. A coin if not deep will also be very loud, but short as you scan across the target, you learn to hear these things. Even deeper a coin will sound as a small object of course. I am looking at a F 70 mainly for the fact that I hear it scans deeper, Im assuming as a given, the fine tuning on things above are incorporated in the 70 .
457-4805,you won't be sorry