My safari is a deep seeker i use a 5x10 sef dd coil it matches the depth of the stock 11 fbs coil with better trash seperation the only thing that hurts the Safari is bad ground it just nulls so what i do is run it all metal and notch out from iron to foil and i notch out 40 (deep iron) i may not get out all the big iron but at least i can hear the goodies. Just sunday at a really bad trash/iron laiden cellar hole i used my Safari with these settings and got a nice quarter size flat button screaming in between the iron/trash also this is a very noisy crazy loud way to hunt and i even have to take breaks just saying. Thank you Paul