Bud
This was found up near the dunes. I use coins and bottlecaps to determine where targets are concentrated. I read once to stick close to where you find quarters as rings and other good stuff may be near. I found a small grouping of three quarters only a few feet from the necklace.
The CTX is a very good machine, at least for me. I hunt from the shoreline to the dunes only as I have other machines for the water. I have found over 5k in jewelry and assorted goodies in the last three months with the CTX. Is it the machine, the person, or the area? The best answer is a combination of all those things. Keep in mind, I went two years without finding any gold jewelry. At times, it proved frustrating; however, it never stopped me from hunting.
I remember reading about Sabisch's technique in one of his books. While it may have proven successful for him, it may not always be successful for everyone. Do not misunderstand me. He is a very accomplished hunter and knows what he is doing. I am merely a shadow in his proverbial sunshine...lol. But sometimes you need to figure out what works for you. And when that no longer works, find something else that does.
Good luck with your decision. If you can afford it, I would say go for it. Keep tabs on the classified section. I have owned two and both were purchased used from the forum. Lots of great guys and gals in the community.
JC