I've been using the Mighty Mite for years with my 21-foot Vision. It's great in the rocks. If it gets hung up super-tight, cleat the rope off the bow and kick the motor in reverse.
It is really handy when I am fishing a jetty and the wind is blowing away from the rocks. I chunk it right into the wall, let out line, and have yet to lose one when pulling out.
Even if you carry a Danforth everywhere you go, the Mighty Mite is, in my estimation, a must-have accessory ... particularly if you fish near rocks with any frequency.
Safe fishing and tight lines ...