You guys are REALLY makeing some good points/observations!---I'm learning some good stuff already! -----I think that most of us would agree that we have (one) of the best detectors on the market at this point in time (Etrac).---In our quest for coils to "match-up" with this great detector, what is your opinion (pros & cons) of the following coils (all things considered & intended area/site useage of said coils considered).-------Let's just say---6" DD Excellerator versus 5" DD Sunray X-5------6"X8" SEF versus 8" Sunray X-8------Etrac 11" DD stock coil versus 10"X12" SEF.-----Whatcha think?? ----------Del