the f75 and small coil. Went to a park that is very trashy and got 10.64 clad , 4 wheats. The small coin works very good in the trash and hunted for 3 1/2 hrs. So for the f75 is fast and work good. If this detector keeps working like this I'm not going to worry about a manual that is not pretty. That is kind of like deer hunting you don't eat the horns .