Nugget Finder 8x6 versus 12x7 Coils??

I recently bought a nice used gpx 4000 and it only came with one coil, a 11" mono commander which is great for general use, I have already purchased a CT GS 18" mono for a big coil for depth, and am now in process of looking at small coils for grain size nugget hunting, I really like the size of the 12x7 mono Nugget Finder coil, will I be loosing the grain size nuggets with this large a coil, or should I go the 8x6? I will be hunting the Nevada desert terrain with gullies, rocks, lots of sage brush, so an elliptical would be best I think. Any thoughts on what I should buy? I do have a GB2 I can use for the really tiny stuff.

Both are excellent coils. The 8x6 Sadie is wicked on the tiny stuff a real clean up coil hence the name Sadie.

The 12 x 7 wont miss much at all but will give you that bit more ground coverage and a touch more depth. Like all small coils they are also wicked on hotrocks, but I don't know if that is a problem over where you are as it can be here.

I regularly get .1's and .2's of a gram and even smaller with an 18" NFA mono so either of the 2 you've mentioned will do exceptionally well on the small stuff.

Madtuna, thanks for your response, this is what I was wanting to hear about that 12x7, I really like the size of it for a smaller coil. Like you say a bit more coverage and a bit deeper. In the Calif gold fields 30 miles from where I live there are a lot of hot rocks in some areas, but in the backcountry of Nevada where we been detecting, not so many hot rocks there.