This we fish in the dusk or preferably on a cloudy day. The great contrast helps it stick out and give a good impression. We used to fish it on an orange tubing, but this more discrete silvery version is maybe I think better. For the dusk, we believe that the glow tubing adds to the impression and gives me the best dusk hitch fly in my box. In tricky conditions we sometimes try it fairly big.

Slim profile
Holes on sides for the leader
No cones for easy skating
Creates a small wake
As simple as effective