I have been using my new to me F5 for about a month and I am getting to really like this detector. First thing I did when I got this like new detector was replace the batteries with quality alkalines. I am approaching thirty hours of use and I am down one bar on the battery gauge! I have found over 200 coins with the detector with most being clad. I was not finding many deeper coins and was beginning to think I could not get the 7 to 8 inch deep depth that most of the older coins come from around my neck of the woods. To be fair, the ground is bone dry and extremely hard from lack of rain and I was blaming that on the lack of depth. I am using the stock concentric coil and while being an accurate pinpointing coil, I was also thinking it might be hindering my depth because of mineralized soil that I hunt in. Sunday morning was hot and humid and I was just about ready to quit detecting when I got a repeatable high tone that was bouncing between 72 and 80. It pinpointed at 6 inches and I was not too excited about it being a coin. Again, the ground was bone dry and I was not expecting any coins this deep where I was hunting. 1930 wheatie from about 7 inches deep. This coin gave me hope that the F5 was capable of finding coins at the depths I needed. Since I was hunting in three tones, the signal was very similar to the deep coins I use to find with the Omega. Weak high ticks. Today I was out at daylight to beat the heat and went to one of my local fairgrounds. I have not found anything but clad here this year and my expectations were not too high. I found my usual 20 clad coins at depths up to three inches and since the sun was clearing the trees, it was like someone turned on a heat lamp. I moved to an area that I hunted a couple of years back with a Coinstrike and did not have much success. This area is at the very edge of the fairgrounds and I have not hunted here too much as it does not have much activity. In the first pass, I got repeatable, faint high tone with numbers in the 70 and low 80's. Sundays last deep coin was very similar and I was hoping for a coin. From 7 inches comes a wheatie. While rescanning the area I got three more identical signals and all were wheaties from 7 to 8 inches deep. These were not banger type signals, but they gave me the clue I was looking for. The tones were all high ticks and numbers boucning higher than normal by 6 to 8 digits. I finished that pass and made one more pass and ended up with four more deep wheats. It is great when you can find deeper coins like this in short order. You quickly realize what to look and listen for. I had to quit detecting because of the heat, but today's hunt gave me new found confidence in the F5. R.L.