has anyone tried this coil for relic hunting, i am looking for something in this lightweight machine to make it find relics as deep as i find them with my nat.2b I posted earlier and everyone seems to like the 5.75 I have one of those already but it does not find as deep as the factory provided coil. I am a relic hunter in v.a. searching skirmish and camp sites from the war of northern aggression the discriminating ability does not play a factor because I dig all solid signals.Any suggestions would be greatly accepted.