Like the previous model, the Excal II will continue to sound off on iron after the coil has passed the target. The "iron growl" will go away when another target is detected, but it can be annoying. I run the coil by my scoop to clear the threshhold tone.
I run it with minimal discrimination and dig everything that isn't obviously iron...and sometimes I dig the iron too if I'm curious or haven't had a target in a long time.
It's a very easy machine to use. There are many ways to configure how you carry the machine (shaft/hip/chest mount) as well.
HH!
TBGO