I know you guys know your CZ's and since they operate at a 5 and 15khz frequency and from what I've read so does the White's beach series machines, is the performance of the whites the same as the CZ's? I used to have a CZ6a that I bought from Dan many years ago and had very good luck with it at the salt water beach, wish I still had it. Have been thinking about getting a Whites but wanted to know about their performance compared to the CZ's. Thanks for any info and good hunting. John