I will occasionally run both my stern anchor and bow from the bow if there is a wind
shift in the middle of the night and I don't want to be broadside to it. Yes things can get tangled if the boat
is allowed to stay there and rotate there for a while, of course, but the benefits can sometimes outweigh the negatives. It is possible to rig a temporary Bahamian Moor that won't have major tangles or break any fingers I think, but it requires a stern hook and rode
that are disconnected from the boat and connected to the bow anchor rode
. If your bow anchor is all chain you can set a stern anchor, with chain and nylon rode and tie a nylon loop onto the chain that won't slide down the chain, like a couple of wraps on the chain and a couple of half hitches I think, at a point such that there is adequate scope
in either direction. Let the extra nylon rode hang (in a lashed coil) under the junction. Unwrapping the nylon rode from the chain shouldn't take too long. If the bow anchor is nylon/chain combo then the junction can be made of a span loop or directional figure eight on the bow anchor rode and a bowline on a bight for the stern. I know the strength of the line with knots is reduced but for this application I think it would be worth considering.