I have used the Eliminator coil for a long time, it is one of my favorite coils...it will handle much higher sensitivity than other coils.. and for a 6 inch coil it has remarkable depth..On my XLT, I crank up the AC sensitivity to 77-80, ..this along with some other minor adjustments. make this coil a deep silver finder...and power lines are not much of a problem with this coil ..As I understand it when you toggle to the all metal mode only the bottom half of the coil works and the top half acts as a shield against the power interference from the power lines....I recommend you get one if you can find one...I have seen some go on EBAY for less than $50.00. the market price was around $159.00...and there are some websites in Austrailia selling these things for $342.00...I just recently went to a well hunted park...really well hunted...you could see evidence of many tufts of grass and dirt disturbed where others had been...I was there for about 2 hours and found 20 dimes, 12 quarters, 4 nickels, and a slew of pennies...and the area I searched might have been 150x200 feet.. I didn't find those elusive rings or other jewelry, but I had fun.. the coins I found appeared to have been in the ground for a long time, I don't know why other detectorists didn't find them...I am going back tomorrow to go over another section of the park..