GPX 4500 and wet beach

Hi all
sorry for my bad English but I'm French.
I have owned a GPX 4500 for a long time, I am very happy with the device for prospecting forests and fields given its ability to find deeper than VLF detectors.
But today I have a new challenge, I want to use the 4500 on a wet beach to search for relics (small silver coins) in a very small space.

I use the Salt Corse program but I always get ground noise when I use it on wet sand. Specially when i rise juste a little the coil from the soil because of the vegetation. Of course, I very often adjust the ground balance with the tracking button but it's not enough. Do you have any settings you can recommend to improve the stability of the detector? Maybe some people use a GPX in these ground conditions (salty and wet)?

I have a second option: buy the minelab Manticore, but I'm not sure if it is better at depth than the 4500. Has anyone used this VLF on a wet beach?
I can't find anything on the Europeans forum and I have no feedback on the Manticore in these specific field conditions.

I hope you can give me answers to my questions.
Thank you so much for your answers

Greetings from France.

G'day Olive, welcome to the forum.

Although I have little to no experience with the GPX series detectors over wet beach sands, there's some information on detectors & coils for salt lake use or what best detector/coil to use in or over salty ground, that may be of help to you.
Look up page 3 in the "All About Coils" thread, under "Best detectors & coils for salt lakes" by (wilpow) & "14 inch Coiltek Anti-Interference coil for salt & high mineralized ground by (mickb)  
Ringing your local detector shop or that of coil manufacturers regarding what best settings/coil timings or coils to use for wet beach sands on your GPX 4500, might also give you some answers to your questions.
I once used my GPX on/over dry beach sands using a 14 inch DD coil with little or no ground noises, but when I got close to the wet sands the detector coil were falsing non stop over the wet sands, with every swing.  

Cheers Kon  

thank you very much kon61gold for your answer
I'll read the topic of coils carefully.
Best regards

Bonjour Olive.

I haven't used a Manticore, but earlier Minelab multi-frequency detectors such as the Explorer series, Sovereign series and the CTX3030, function perfectly well in and around salt water/wet beach sand, so I'd guess the Manticore would too.

hiluxer wrote:Bonjour Olive.

I haven't used a Manticore, but earlier Minelab multi-frequency detectors such as the Explorer series, Sovereign series and the CTX3030, function perfectly well in and around salt water/wet beach sand, so I'd guess the Manticore would too.

thank you so much for your answer hiluxer.
For sure Minelab multi-frequency detectors are good in wet beach ; i was wondering if they are better than my gpx with the Salt corse mode and the 11" DD coil.