Whats the best lightest and deepest metal detector out there.Looking for my third unit the other two XLT and Minelab are both to heavy for long hunts.looking for 3lbs or under.please don't bring up Bounty Hunters.price is not a factor.I all ready have 2 great machines used for different applications.Coin hunting is all I do mostly land but some beach.Been metal detecting for 6 years love it but would love it more with alighter machine that works good on coins.