For those who are interested this is a knot thats good for doubling the line or for making a dropper loop. Stronger than the regular dropper loop and stronger than the spider hitch. Invented by Roy Rose of the Royal Polaris, it's a strong knot for sure.
First step double the line to however long you want the loop.
Second step make a loop with the doubled line.
Third step make 5 overhand wraps.
Fourth step pull together, making sure that all 4 legs of the knot are even when cinching down. (critical!)
Fifth step Cinch down, should look something like this.
If you want to fish a dropper cut the loop to whatever length you desire, and tie on your hook and sinker.