Gets better every time out with the F75. Got a 1898 on Saturday, 1897 & 1886 on Sunday, and the oldest U.S. coin to date, 1812 L.C. (Poor shape). Been running sens. 75 to 90, discrim. 1 to 15, Tones 2F & 3 and dE. Sens at 75 seems to cut down on the chatter and still gets plenty of depth. The Indians were shallow, the L.C. was about a foot deep. All and all I like it.