Kosmo
I use Fish ID to attempt to separate bait fish from larger fish. The different colors for the different cone angles won't work on my Onix. I only get one color irrespective of frequency, but I do get the fish symbol...presumably for the larger fish. As I understand it, the fish symbol is assigned based upon the echo given off by the fish's air bladder. Only bladders of a larger fish get the fish symbol. Not sure how all of this echo interpretation will work, or if it will work at all, when there are multiple frequencies, cone angles etc. in play. I would love to be putting this upgrade thru the paces, but my boat is 750 miles away and the lake there is frozen. It's killing me. Thanks again for you efforts!