Ronandari , i just started using the 12x10 sef ( barrowed from a friend) on my dfx , its definitely heavier than the standard 950 coil ( i'm unsure how the 950 rates with the D2 in weight , i assume the 950 is a bit heavier) .it took me a bit to get use to the added weight but i was amazed at (for a big coil ) how sensitive to the really small bits , its depth is great but it has superb ground coverage . it made a believer out of me and is a great coil . to be honest i was going to save up a couple of Whites $100 dollar coupons ( from sending in finds stories) to get a D2 ) but i'm going with the 10x12 sef instead.

Dan