I also make the loop as small as possible ( when I tie them
)
Chronies all spring and summer long!!! Even with bad clarity. Chronies make up most of the trouts diet so they are always feeding on them. If you find the fish they will come. I usually start out with a chromie and well switch if I know its in the fishes face and they are not taking it. Dont forget a hand twist it can be the difference between getting fish and being skunked. Leaving it static does not always work.
Anyways any of those that are truly serious about this type of fishing should get some on the water lessons. I myself have had the lessons on the water and they took me from hitting fish periodically to constantly producing fish. All the words in the world could not help you a much as being taught hands on by an experienced chronie fisherman.
BC Outdoors is putting on a fly fishing weekend called " Learning with the Pros " in May on Salmon Lake. I seriously suggest trying to see if their are any openings left as this well take you to the next level. If I had that weekend free I would be doing it.