I went to a fresh water swimming beach this morning with my AT Pro, waders, long handle sand scoop, and floating sifter. Any one that does this regularly must have one heck of a strong right arm. I knew it would be hard swing in the water, but after 2 hours I was getting really tired. I was lucky and found 1 clad quarter and a bottle cap. I passed up a few iffy targets that were 6-8" deep, because I was having trouble digging that deep in the water, the holes kept filling back in. Can a hole be dug to an 8" deep target? What is the secret to digging that deep?