Thanks,
I use the silver one and a home made one that's more sensitive and another from another member that's even more sensitive.
The only problem with the other 2 is you pick up tiny bits of metal, great for thrips though.
I have never used the beach mode one, I find that the silver program works better even on the beach.
Fast and deep on plus saltwater. Manual sens all the way up, depending on the type of sand or just leave on auto +3 if the sand is red.
If you join the facebook page CTX Users group of Australia. There are a ton of programs available for download.