I have an ACE 150(backup) and the ACE 350. I have found about 8 dollars in clad and two 14k rings, and some relics and the like over 3 months. Now I'd like to move from the dirt and dry sand, sometimes wet, and get into the saltwater. I am looking for a water machine and now have the money for the AT Pro. I need to know if it is worth the purchase for the water or if I should look for a different machine? How much do all you AT Pro users find in the water?