Has anyone had any luck getting the v80 to run quiet??? I have dropped sensitivity and TX and gone all metal, gone to every frequency, ground balance and noise cancel after every single change ( which is ridiculous to have to do) it will run semi quiet if the coil isn't touching anything, I hunt woods and grassy areas, no beaches. The machine is unusable! The smaller coil is much quieter, but I paid for the big coil as well so I could use it. I paid 1,000 dollars for a machine that i spend more time pushing buttons on than I do swinging it. Absolute bull crop.