The 6x10" is (IMHO) the best overall coil to use when prospecting. It gives a bit more ground coverage than the mini shooter, better depth, and near the same small gold sensitivity. I find both the elliptical DD coils to be superior to the round (6") when hunting because, more often than not, I'm sticking just the tip into areas because of tight clearances and pinpointing is super fast (quickly pulling the coil backwards, whilst wiggling it, until the target is just under the tip). The elliptical coil is also why I don't use/need a pinpointer; just pick up the MXT by the middle stem, maybe change the coil angle, and use the coil tip. Also, the the 6x10" is just barely usable in a stream (bobs somewhat and can be a pain), the larger DD and the fat ol' 6 incher would be somewhat worse. I'd think that one of the Detech Excellerator coils woud be a bit of a better choice.. though I'm still drying out the innards of my 14" round EX2 coil (shoddy workmanship). ..Willy.