One of the main benefits the SDC has imo is its ability to be basically slid across the ground without falsing giving a true depth not represented well in air testing. In addition I particularly like the knuckle style coil assembly which can be pushed beneath undergrowth easily which has found me gold others have missed , I have never used an ATX so can not confirm the reports posted elsewhere that this may not be the case (falsing when knocked )with the Garrett so a days hire of both machines may be money well spent. The ATX was the machine I was considering against the SDC for they both appeal with their versatility and I went with the SDC after reading just about every report on this and other forums.
Good luck which ever way you go , but for me very happy SDC owner
Cheers
Good luck which ever way you go , but for me very happy SDC owner
Cheers