Specifically DD coils for a Bandido 2 Micro Max. I just picked one up from a forum member with the 8" and 6" concentric coils but am wondering if I would see any benefit to a DD. I would be looking to put it too work on river banks, lake shores and maybe dry sand at the beach. So far Ive looked into the NEL Sharpshooter 9.5" x 5.5". Just wondering what others thoughts and or experiences are.

Garrett Apex, Nokta Simplex, Tesoro Bandido 2 Micro Max, Garrett Carrot