Stuff cuts like soft butter. Then you can rake out cuttings. I have an aquatic rake also. The live stuff slides right through but you gather the cut material. If I had too much or that density I would surely thin it out. You can selectively cut and harvest that fairly easily. Maybe even make a few patches for fish to hang out. The only place I had it bad I put in creeping primrose and that outcompeted it fast. If you tossed the weed shear out and yanked it back you could make fish paths in it. I camped on E Bay and picked up the shear for $56. Not bad since they retail for $129. Probably one of the better low cost solutions for removal here.