Just used my ATX for the first few times.......wow. That thing hits deep targets. I used to wonder about the claims made but 0 doubt its the deepest machine I have tried and ive tried at least 7. Wouldnt give up my CTX or Excal but a cleaned out beach is brought back to life in no time. Clad at 12 inches easy.....I gave up on so many its unreal. I need to learn the sounds a little better but what a deep seeker!