I purchased an E-Trac about 3-4 years ago and put my X-Terra in the closet. Well the weight of the E-Trac gets to me after 2-3 hours of hunting, so when I get tired I now grab my X-Terra. So I am now looking for the best coil for relic hunting (Civil War), best performing and best depth. Looking for opinions from you die hard X-Terra users. I am interested in any brand. Thanks for any help!!!