I like , and have the equipment to use, the AnsleyS method of dropping a chain around the hauled-taut anchor line, but the method we used around the Loop was to tie a retrieval line to the anchor chain as it was being deployed, at the maximum depth of water plus enough to pull the knot back on board, plus some slack. There is then no issue about anything floating around and getting stuck on the prop etc, or another boat fouling the floating line and hauling up your anchor as if on a winch ( ask me.....). ALWAYS make sure there is enough slack in the retrieval line so that it never becomes tighter than the anchor rode.