i have seen em over here just drop the anchor in the middle of the brush pile where other guys are fishin holds every time may have to try it doc no answer till i try it my loz buddy uses a concrete block at each end of the boat that will also hold the boat in a brush pile he doesn't want the boat movin when we are jiggin takes a while for the fish to come back to the pile but don't lose as many jigs if the block gets hung just cut it off not out a 25.00 anchor just in another day on the lake??? oh buy the way doc i won't try it on ice