Thanks for posting John, I saw this two days ago, I own a 300i stock coil and would like to see a video depth comparison on a Garrett Ace 300i with a DD 8.5 x11 vs 400i 8.5x11, if any out there and how much more gain on the 300i if one decided to purchase a coil 8.5 DD for it vs the 300i stock coil that comes with? I realize not always about depth reason I like that smaller coil as mentioned to discriminate out junk vs valuables for what it can do for unmasking for sure though.
Thanks.