But in the test I did against the 11in coil I saw absolutely no difference in separation. I read about this all the time i can tell you that the 15 x 12 minelab coil well separate just as well as the 11 do a test 3 coins 2 inches apart they all separate at 2 inches above the coins FACT so why use the 11.
The 6 has it's place just as the 11 and 12 x 15 the 6 is for heavy trash ever get a perfect hit on the 11 and turn and it says iron turn more and says pull-tab turn some more and it says coin and turn a little more and it says iron again the screen is displaying all types of ids well are you going to dig.
Whats going on you say well the center bar is where the coil gets its id if the tail or the front of the bar is on another target well the id changes . So now we try to see if it's round how can we tell if it's a nail falsing if we run into another target trying to see if its longer signal one way than the other CAN"T TELL now when we pinpoint and have 2 targets under the bar which one well it pick if it picks the nail or pull-tab which is under the center bar are you going to dig.
So as what happens above pick your coil wisely all coils have there pluses and negatives as for the 5 x 10 coiltec coil the stock 6 inch coil well be deeper and separate better than this coil but the coiltec well separate side to side better but as above you loose the separation end to end can't have both .
sube