Build an underbody of yellow tying thread (note you can adjust the colour of
the fly by changing the colour of the underbody.)
Tie in the Ultra Lace. I tie it in at the front then lay it along the top of
the hook and wind the thread back down over the body, this helps build the
body up, makes the grub a little fatter.
Tie off the yellow thread at the head then tie in your black thread for the
head. Wind the Ultra Lace forward to create the body, tie in at the head and
build a small head, whip finish and glue.
And you're ready to go fishing.