Well, the more I use my E-Trac, the better I learn it's language.

What I have noticed is that there seems to be three types of coin signals. There is the obvious one that has good FeCo numbers, and a solid tone. Then there are coins that have a Co spread of 10 points or more and Fe numbers all over the place, but they have a good (if a little warbled) tone. Then there are coins that have good FeCo numbers, but the sounds are all over the place.

I had each of these types of signals today, and I was wondering if anyone else had noticed the same things.