this knot is very simmilar to an angler's loop/tugboat knot, but the loop in the unloaded end is run the opposite direction. i made it passing one loop of a constrictor knot throuth the other. it is subject to slip somewhat if loaded on that strand, but loaded on the other strand it seems fine. i like it for having a very clean apperance with a nice taper to it, yet not being hard to tie and as best i can tell, being fairly secure. i don't really knot this though, as i have found many knots to be secure that are simply not secure in practice, namely because i tie most knots in shoelaces. so if someone could identify this knot and give me some type of background information, that would be nice. these pictures show two of them, one from the front and the other from the back