OK, gotta say the idea of the thead is nothing short of great. Now for the total novice, who bought a $20.00 fish/depth finder off of craigslist. Mine is a Fishing Buddy, or something of the sort. It all looks like the ultra sound picture that people get of thier babies ( I have a few). I could never make out what was being shown to me, maybe I'm just a lost cause.
What would be benificial to me, and maybe others, is a before and after picture. The before with no notations, and the after with the items in question circled, x-ed, or something to make it clearer.
I mainly got mine to see how deep the creek is while I fish in it when I have time, ha ha.