I found out that you need to sharpen hooks while fishing the ditch almost constantly. Bounce the bottom a couple of times and there is a round ball at the end of the hook if you are lucky enough to get it back. I carry a small file such as the one discussed here and check the knot and hook every few casts. Takes just a minute, but it saves lost hookups.
Plugs are a little more forgiving, but they too get beat on the rocks.
I'll bet slip and mac agree with me on this one.