I have asked this question on two other forum sites and get absolutely no responses to my question

Do not know if i am asking my question rite or what but I will try here I own an X-Terra 705 I have three coils for the 705 the 5x10 hf coil the 6 inch hf coil and the 9 inch mf coil and an AT pro with the stock coil.

my question is this is there a coil that I could purchase for the 705 that would get me increased depth

I am mainly searching for gold nuggets on my property I feel there is gold here but to deep for me to detect it with the coils I have.

or should I be looking at a different detector all together like the Nokta FORS gold pro package or others

any suggestions would be greatly appreciated