In reply to mmmhumous:
Rather than have so much of the knotting done by the tail,
as for the Edwards bowline, it is better to put some of the
extra (over basic bowline) into the initial ("standing") part
of the line : have as your base a clove hitch (or a larkshead
/aka "girth hitgh"), and to that do the bowlinesque "rabbit
comes out of the hole, around the tree, and back down
the hole" movements at BOTH ends of this base.
The additional knotting in the standing part is helpful
in resisting loosening of the knot. (It also provides
under-load security if one should have to knot very
slippery bare HMPE cordage.)
I believe that such an enhanced bowline is shown in the
aforementioned PDF document about bowlines and is
named --for the larkshead variation-- "Mirrored bowline"
(for it is as though a mirror bisects the knot along the axis
of tension); and in that document, it is shown over-tightened,
esp. for the loaded end's side (perhaps for space constraints).
*kN*