I just wanted to give my fellow MXT swingers a quick report on the new 6x8 SEF Butterfly coil I just purchased. It's early, but I'm very impressed so far. I made two quick hunts in the same spot that I have pounded with the Super 12, Eclipse 5.3 and a Tejon with stock coil. The first hunt yielded an Eagle "I" button standing on edge next to a large iron nail. On my second outing I scored a 1854 seated liberty dime. I dug multiple bits of brass and lead, but those were the two best. I could not believe how many targets were left in such a small area. Looks like I have a lot more area to re-hunt. I would say it has excellent depth and target seperation. I'll keep you posted.