I probably shouldn't get into this having minimal experience with the new type coils but heres my take. The new Elite & Evolution coils are definitely a lot more sensitive than Minelab coils or previous Coiltek or Nugget Finder coils. IMO they still won't turn a GPX into a GPZ or SDC as some believe. Theres no doubt that they're improved though.
BUT - they can introduce problems, especially for new users, with the extra sensitivity comes more susceptibility to ground noise etc.
I wouldn't say that the the Minelab or older type coils are no good or vastly inferior. People have been finding gold with these coils for years & will continue to do so. They are good coils - in fact my advice would be to learn the GPX with the 11" Commander mono coil. It remains one of the best all round coils & will be a tad more forgiving in bad ground conditions.
The best thing to do is look for or push the dealer for a package that includes one of the new type coils. Most new buyers get one thrown into the deal at very good prices. The GPX4500 & SDC2300 seem to be 2 x machines dealers are willing to bend over backwards to sell.
BUT - they can introduce problems, especially for new users, with the extra sensitivity comes more susceptibility to ground noise etc.
I wouldn't say that the the Minelab or older type coils are no good or vastly inferior. People have been finding gold with these coils for years & will continue to do so. They are good coils - in fact my advice would be to learn the GPX with the 11" Commander mono coil. It remains one of the best all round coils & will be a tad more forgiving in bad ground conditions.
The best thing to do is look for or push the dealer for a package that includes one of the new type coils. Most new buyers get one thrown into the deal at very good prices. The GPX4500 & SDC2300 seem to be 2 x machines dealers are willing to bend over backwards to sell.