Are the NEL coins better than stock coils?

[Newfiehunter]

Just curious. Are the NEL coins much of an advantage over the stock coil that comes with the detector? Anyone have much experience with them? If they are, where can you purchase one?

 

[Produce Guy]

I've seen those coils on the kellyco site,don't know much about them.

 

[christo000]

Sef coils all the way in my opinión at least been using a 6.x 8 & a 10x12 on my v3i I like them better then dd coils & concentric they seem really deep good separation & great with emi