Was going to buy a 5x8 coil but I thought what the heck I need a good back machine so I bought another AT PRO with both coils, also got the headphone adapter pretty sweet, only had a hour to check it out today but its really nice, the 5x8 really changes the weight, ALOT, cant wait to hit a couple trashy spots that I know of, Im sure theres lots of coins there and maybe even some good rings.