Tried out the G2 today and have some questions?

[amcjavelin]

Well tried it today and i think this is going to be killer machine, now my question is i noticed on some targets with iron involved at first it sounded like a good target then i slowed down the sweep and noticed it would stay in iron tone but if i swept the coil a little faster then the high tone would come back but i just can't remember if ID#s were on the high tone swing?

 

[88junior]

Shallow rusty surface items do this sometimes raise your coil up a little off the ground and see if it don't then sound like iron which is the low tone.