For one don't feel sorry for me. The less line I have out the happier I am. I'm just not ignorant enough to say that there aren't fish past my boat. Two who said it had to be deep to be useful? Three if you use a regular graph or flasher, at all, then you are just as guilty as I am for using a side imaging graph. I can cover water faster with si is all. Its the same thing only I see a better picture and more of it. I have caught fish off of stuff that I found and turned right around and fished. I have caught fish out of stuff that I fished months later because it was what I considered out of season but I made a waypoint to hit later.
That most tournaments won in 10' or less is a load of crap. Maybe in certain seasons or lakes but as has been mentioned not table rock. Also grand in the summer is an off shore lake. Yes there are shallow fish to be had but the money is made off shore.
I'm sorry your narrow mindedness has kept you with less than 20' of line on your reel. I'll send you a new spool if you'll buy a graph and start fishing ledges. There are good fish out there. Even on loz.