Hi Navarro.
If you have found or know of patches that others have worked and you think there is a chance of something even deeper why not.
Going over even thrashed ground very carefully with something different can produce pleasant surprises.
Maybe also if you want to do some motorized detecting on some flat ground or a salt lake also.
But I wouldn’t buy one as a stock search coil as I wouldn’t want to be swinging that all day to the detriment of one’s stamina, technique and concentration. Those aspects as well as the loss of sensitivity of large coils to small nuggets are reasons why one may miss that important small nugget that would prove to be the start of a good patch.
Just my thoughts.