On the forums here in Aus Im reading conflicting opinions on the ground balance between the two models.(US and international) Some say the ground balance is the same on both and others say that the International ground balance is tweeked for harsher Europeon and Aussie soils. So I e-mailed Garret and was told that there is no difference in the ground balance set up between the two models.Now when I posted this on the forum a dealer replied that there is a difference between the two.Confusing. Many detectors are calibrated specifically to handle our conditions.....which is it. Any-one able to clarify this. Cheers