hi all, I hope everybody had a great easter.  Managed to get out yesterday with my two boys and my wife. Caught I white tip shark, ras and 4000 northwest blowies. Dunsborough out door world is going to love me as I lost so many hooks and need to restock...lol...Anywsy you all know im an apprentice wen it comes to my sounder.  I believe I need to b on coral to be catching decent fish. Finding it hard distinguishing between rocks, coral mud etc. Do I need to increase my ground thickness to see the ground better.? is coral orangey in color?  Wen I travel along it all looks the same to be honest..any tips or input would be greatly appreciated. .thanks so much in advance. ..cherrs Don