1) Add about 60 cm of 0,16 nylon.

2) Prepare a tip of 130/150 cm of 0,14 nylon or a bit more than 1 meter if you use size 0,14. The correct length of this part, in relation with the size of the fly, can be calculated considering how the last 30/40 cm of tip conform on the water close to the fly itself. 

Tie the nylon pieces with the knot illustrated in the sketch.  

Regular: the leader described here above, at the end of the cast the tip shapes a very tight loop, almost wedge shaped, with a number of tiny curls. Ideal for those water tendentially linear for conformations and speed. 

Strangled: it has almost the same power, a shorter addition of nylon and a longer tip that will shape in a half moon. Ideal for waters from fast to very fast.

Unbalanced: ideal for chalk streams. Same power but with a much longer point. This imbalance depends on the chalk streams currents which vary over longer lengths. The tip should form lot of curls of bigger sizes compared with the Regular.