I'm actually interested to see what people make of the Singles to tube thing?
I had never thought it was to do with leverage (but its an interesting idea) but more to do with castability and the presentation of the fly in the water.
I know i have seen very few Saltwater tubes, although i have seen some.
With a strong current on a river where you would fish for salmon, then a single hook may be prone to twisting
so a tube eliminates this to a large extent. A double hook will keel nicely like a boat so will be more stable too.
However in Saltwater , generally you are fishing without the turbulence of the river so a single hook will keel nicely and will probably be easier to strike home in the hard boney saltwater fishes mouth. Just a thought.
I know in Australia a lot of the lure fishermen, are replacing the trebles on their rapala's and the like, with singles as a conservation measure, the jig fishing guys use singles too, they can be much stronger than trebles or doubles for an equivalent size.
Is anyone fishing the Tubes with singles? i know a lot are fished with doubles as they help the fly present better. Would be interesting to see if the tube can be fished with a single hook effectively.
It will be very interesting to see other people's take on this one
Sandy