I am staying at a resort in Orlando that has a volleyball court. So I went over to hunt it with my ET and it just would not settle down. Even with a sens. setting of 10 it still was jumpy. Tried everything including a smaller coil. Sure there are lots of cables under it. A security guard came over to stop me but saw I was not using a tool so let me hunt on. Could not hear any low tones at all and picked out a couple of coins. Went back to the truck and pulled out the 75 to see if it could function in that environment. In 9.1 it was just as bad. When I went to 9.0 it was like I was at another spot. Worked like a champ Did have to back down the sens to 70 but it was quite and stable. Found 2 pieces of costume jewelry and lots of coins. It saved the day. This is one MD that will be sticking around. Never have had that problem with the ET but the 75 is all it is suppose to be. Will be posting a video when I get home Saturday.